diff --git a/web/frontend/src/User.root.svelte b/web/frontend/src/User.root.svelte
index 96ee4704..669ca8bb 100644
--- a/web/frontend/src/User.root.svelte
+++ b/web/frontend/src/User.root.svelte
@@ -7,7 +7,7 @@
 -->
 
 <script>
-  import { onMount, getContext } from "svelte";
+  import { untrack, onMount, getContext } from "svelte";
   import {
     Table,
     Row,
@@ -33,6 +33,7 @@
     scrambleNames,
   } from "./generic/utils.js";
   import JobList from "./generic/JobList.svelte";
+  import JobCompare from "./generic/JobCompare.svelte";
   import Filters from "./generic/Filters.svelte";
   import PlotGrid from "./generic/PlotGrid.svelte";
   import Histogram from "./generic/plots/Histogram.svelte";
@@ -54,37 +55,44 @@
   const client = getContextClient();
   const durationBinOptions = ["1m","10m","1h","6h","12h"];
   const metricBinOptions = [10, 20, 50, 100];
+  const matchedJobCompareLimit = 500;
 
   /* State Init */
   // List & Control Vars
   let filterComponent = $state(); // see why here: https://stackoverflow.com/questions/58287729/how-can-i-export-a-function-from-a-svelte-component-that-changes-a-value-in-the
   let jobFilters = $state([]);
+  let filterBuffer = $state([]);
   let jobList = $state(null);
   let matchedListJobs = $state(0);
   let isSortingOpen = $state(false);
   let isMetricsSelectionOpen = $state(false);
   let sorting = $state({ field: "startTime", type: "col", order: "DESC" });
   let selectedHistogramsBuffer = $state({ all: (ccconfig['userView_histogramMetrics'] || []) })
+  let jobCompare = $state(null);
+  let matchedCompareJobs = $state(0);
+  let showCompare = $state(false);
+  let selectedJobs = $state([]);
 
   // Histogram Vars
   let isHistogramSelectionOpen = $state(false);
   let numDurationBins = $state("1h");
   let numMetricBins = $state(10);
 
-  // Compare Vars (TODO)
-  // let jobCompare = $state(null);
-  // let showCompare = $state(false);
-  // let selectedJobs = $state([]);
-  // let filterBuffer = $state([]);
-  // let matchedCompareJobs = $state(0);
-
   /* Derived */
   let selectedCluster = $derived(filterPresets?.cluster ? filterPresets.cluster : null);
-  let metrics = $derived(filterPresets.cluster
-    ? ccconfig[`metricConfig_jobListMetrics:${filterPresets.cluster}`] ||
-      ccconfig.metricConfig_jobListMetrics
-    : ccconfig.metricConfig_jobListMetrics
-  );
+  let selectedSubCluster = $derived(filterPresets?.partition ? filterPresets.partition : null);
+  let metrics = $derived.by(() => {
+    if (selectedCluster) {
+      if (selectedSubCluster) {
+        return ccconfig[`metricConfig_jobListMetrics:${selectedCluster}:${selectedSubCluster}`] ||
+          ccconfig[`metricConfig_jobListMetrics:${selectedCluster}`] ||
+          ccconfig.metricConfig_jobListMetrics
+      }
+      return ccconfig[`metricConfig_jobListMetrics:${selectedCluster}`] ||
+        ccconfig.metricConfig_jobListMetrics
+    }
+    return ccconfig.metricConfig_jobListMetrics
+  });
   let showFootprint = $derived(filterPresets.cluster
     ? !!ccconfig[`jobList_showFootprint:${filterPresets.cluster}`]
     : !!ccconfig.jobList_showFootprint
@@ -126,18 +134,29 @@
     })
   );
 
-  /* Effect */
+  /* Functions */
+  function resetJobSelection() {
+    if (filterComponent && selectedJobs.length === 0) {
+      filterComponent.updateFilters({ dbId: [] });
+    };
+  };
+
+  /* Reactive Effects */
+  $effect(() => {
+    // Reactive : Trigger Effect
+    selectedJobs.length
+    untrack(() => {
+      // Unreactive : Apply Reset w/o starting infinite loop
+      resetJobSelection()
+    });
+	});
+
   $effect(() => {
     if (!selectedHistogramsBuffer[selectedCluster]) {
       selectedHistogramsBuffer[selectedCluster] = ccconfig[`userView_histogramMetrics:${selectedCluster}`];
     };
   });
 
-  $effect(() => {
-    // Load Metric-Selection for last selected cluster
-    metrics = selectedCluster ? ccconfig[`metricConfig_jobListMetrics:${selectedCluster}`] : ccconfig.metricConfig_jobListMetrics
-	});
-
   /* On Mount */
   onMount(() => {
     filterComponent.updateFilters();
@@ -167,7 +186,7 @@
 <Row cols={{ xs: 1, md: 2, lg: 6}} class="mb-3">
   <Col class="mb-2 mb-lg-0">
     <ButtonGroup class="w-100">
-      <Button outline color="primary" onclick={() => (isSortingOpen = true)}>
+      <Button outline color="primary" onclick={() => (isSortingOpen = true)} disabled={showCompare}>
         <Icon name="sort-up" /> Sorting
       </Button>
       <Button
@@ -181,208 +200,264 @@
   </Col>
   <Col lg="4" class="mb-1 mb-lg-0">
     <Filters
-      startTimeQuickSelect
       bind:this={filterComponent}
       {filterPresets}
-      matchedJobs={matchedListJobs}
+      showFilter={!showCompare}
+      matchedJobs={showCompare? matchedCompareJobs: matchedListJobs}
+      startTimeQuickSelect
       applyFilters={(detail) => {
         jobFilters = [...detail.filters, { user: { eq: user.username } }];
         selectedCluster = jobFilters[0]?.cluster
           ? jobFilters[0].cluster.eq
           : null;
-        jobList.queryJobs(jobFilters);
+        selectedSubCluster = jobFilters[1]?.partition
+          ? jobFilters[1].partition.eq
+          : null;
+        filterBuffer = [...jobFilters]
+        if (showCompare) {
+          jobCompare.queryJobs(jobFilters);
+        } else {
+          jobList.queryJobs(jobFilters);
+        }
       }}
     />
   </Col>
   <Col class="mb-2 mb-lg-0">
-    <InputGroup>
-      <InputGroupText>
-        <Icon name="bar-chart-line-fill" />
-      </InputGroupText>
-      <InputGroupText>
-        Duration Bin Size
-      </InputGroupText>
-      <Input type="select" bind:value={numDurationBins} style="max-width: 120px;">
-        {#each durationBinOptions as dbin}
-          <option value={dbin}>{dbin}</option>
-        {/each}
-      </Input>
-    </InputGroup>
+     {#if !showCompare}
+      <InputGroup>
+        <InputGroupText>
+          <Icon name="bar-chart-line-fill" />
+        </InputGroupText>
+        <InputGroupText>
+          Duration Bin Size
+        </InputGroupText>
+        <Input type="select" bind:value={numDurationBins} style="max-width: 120px;">
+          {#each durationBinOptions as dbin}
+            <option value={dbin}>{dbin}</option>
+          {/each}
+        </Input>
+      </InputGroup>
+    {/if}
   </Col>
   <Col class="mb-2 mb-lg-0">
-    <TextFilter
-      setFilter={(filter) => filterComponent.updateFilters(filter)}
-    />
+    {#if !showCompare}
+      <TextFilter
+        {filterBuffer}
+        setFilter={(filter) => filterComponent.updateFilters(filter)}
+      />
+    {/if}
   </Col>
   <Col class="mb-1 mb-lg-0">
-    <Refresher onRefresh={() => {
-      jobList.refreshJobs()
-      jobList.refreshAllMetrics()
-    }} />
+    {#if !showCompare}
+      <Refresher onRefresh={() => {
+        jobList.refreshJobs()
+        jobList.refreshAllMetrics()
+      }} />
+    {/if}
   </Col>
 </Row>
 
 <!-- ROW3: Base Information-->
-<Row cols={{ xs: 1, md: 3}} class="mb-2">
-  {#if $stats.error}
-    <Col>
-      <Card body color="danger">{$stats.error.message}</Card>
-    </Col>
-  {:else if !$stats.data}
-    <Col>
-      <Spinner secondary />
-    </Col>
-  {:else}
-    <Col>
-      <Table>
-        <tbody>
-          <tr>
-            <th scope="row">Username</th>
-            <td>{scrambleNames ? scramble(user.username) : user.username}</td>
-          </tr>
-          {#if user.name}
-            <tr>
-              <th scope="row">Name</th>
-              <td>{scrambleNames ? scramble(user.name) : user.name}</td>
-            </tr>
-          {/if}
-          {#if user.email}
-            <tr>
-              <th scope="row">Email</th>
-              <td>{user.email}</td>
-            </tr>
-          {/if}
-          <tr>
-            <th scope="row">Total Jobs</th>
-            <td>{$stats.data.jobsStatistics[0].totalJobs}</td>
-          </tr>
-          <tr>
-            <th scope="row">Short Jobs</th>
-            <td>{$stats.data.jobsStatistics[0].shortJobs}</td>
-          </tr>
-          <tr>
-            <th scope="row">Total Walltime</th>
-            <td>{$stats.data.jobsStatistics[0].totalWalltime}</td>
-          </tr>
-          <tr>
-            <th scope="row">Total Core Hours</th>
-            <td>{$stats.data.jobsStatistics[0].totalCoreHours}</td>
-          </tr>
-        </tbody>
-      </Table>
-    </Col>
-    <Col class="px-1">
-      {#key $stats.data.jobsStatistics[0].histDuration}
-        <Histogram
-          data={convert2uplot($stats.data.jobsStatistics[0].histDuration)}
-          title="Duration Distribution"
-          xlabel="Job Runtimes"
-          xunit="Runtime"
-          ylabel="Number of Jobs"
-          yunit="Jobs"
-          usesBins
-          xtime
-        />
-      {/key}
-    </Col>
-    <Col class="px-1">
-      {#key $stats.data.jobsStatistics[0].histNumNodes}
-        <Histogram
-          data={convert2uplot($stats.data.jobsStatistics[0].histNumNodes)}
-          title="Number of Nodes Distribution"
-          xlabel="Allocated Nodes"
-          xunit="Nodes"
-          ylabel="Number of Jobs"
-          yunit="Jobs"
-        />
-      {/key}
-    </Col>
-  {/if}
-</Row>
-
-<!-- ROW4+5: Selectable Histograms -->
-<Row>
-  <Col xs="12" md="3" lg="2" class="mb-2 mb-md-0">
-    <Button
-      outline
-      color="secondary"
-      class="w-100"
-      onclick={() => (isHistogramSelectionOpen = true)}
-    >
-      <Icon name="bar-chart-line" /> Select Histograms
-    </Button>
-  </Col>
-  <Col xs="12" md="9" lg="10" class="mb-2 mb-md-0">
-    <InputGroup>
-      <InputGroupText>
-        <Icon name="bar-chart-line-fill" />
-      </InputGroupText>
-      <InputGroupText>
-        Metric Bins
-      </InputGroupText>
-      <Input type="select" bind:value={numMetricBins} style="max-width: 120px;">
-        {#each metricBinOptions as mbin}
-          <option value={mbin}>{mbin}</option>
-        {/each}
-      </Input>
-    </InputGroup>
-  </Col>
-</Row>
-{#if selectedHistograms?.length > 0}
-  {#if $stats.error}
-    <Row>
+{#if !showCompare}
+  <Row cols={{ xs: 1, md: 3}} class="mb-2">
+    {#if $stats.error}
       <Col>
         <Card body color="danger">{$stats.error.message}</Card>
       </Col>
-    </Row>
-  {:else if !$stats.data}
-    <Row>
+    {:else if !$stats.data}
       <Col>
         <Spinner secondary />
       </Col>
-    </Row>
-  {:else}
-    <hr class="my-2"/>
-    <!-- Note: Ignore '#snippet' Error in IDE -->
-    {#snippet gridContent(item)}
-      <Histogram
-        data={convert2uplot(item.data)}
-        title="Distribution of '{item.metric} ({item.stat})' footprints"
-        xlabel={`${item.metric} bin maximum ${item?.unit ? `[${item.unit}]` : ``}`}
-        xunit={item.unit}
-        ylabel="Number of Jobs"
-        yunit="Jobs"
-        usesBins
-        enableFlip
-      />
-    {/snippet}
-
-    {#key $stats.data.jobsStatistics[0].histMetrics}
-      <PlotGrid
-        items={$stats.data.jobsStatistics[0].histMetrics}
-        itemsPerRow={3}
-        {gridContent}
-      />
-    {/key}
-  {/if}
-{:else}
-  <Row class="mt-2">
-    <Col>
-      <Card body>No footprint histograms selected.</Card>
-    </Col>
+    {:else}
+      <Col>
+        <Table>
+          <tbody>
+            <tr>
+              <th scope="row">Username</th>
+              <td>{scrambleNames ? scramble(user.username) : user.username}</td>
+            </tr>
+            {#if user.name}
+              <tr>
+                <th scope="row">Name</th>
+                <td>{scrambleNames ? scramble(user.name) : user.name}</td>
+              </tr>
+            {/if}
+            {#if user.email}
+              <tr>
+                <th scope="row">Email</th>
+                <td>{user.email}</td>
+              </tr>
+            {/if}
+            <tr>
+              <th scope="row">Total Jobs</th>
+              <td>{$stats.data.jobsStatistics[0].totalJobs}</td>
+            </tr>
+            <tr>
+              <th scope="row">Short Jobs</th>
+              <td>{$stats.data.jobsStatistics[0].shortJobs}</td>
+            </tr>
+            <tr>
+              <th scope="row">Total Walltime</th>
+              <td>{$stats.data.jobsStatistics[0].totalWalltime}</td>
+            </tr>
+            <tr>
+              <th scope="row">Total Core Hours</th>
+              <td>{$stats.data.jobsStatistics[0].totalCoreHours}</td>
+            </tr>
+          </tbody>
+        </Table>
+      </Col>
+      <Col class="px-1">
+        {#key $stats.data.jobsStatistics[0].histDuration}
+          <Histogram
+            data={convert2uplot($stats.data.jobsStatistics[0].histDuration)}
+            title="Duration Distribution"
+            xlabel="Job Runtimes"
+            xunit="Runtime"
+            ylabel="Number of Jobs"
+            yunit="Jobs"
+            usesBins
+            xtime
+          />
+        {/key}
+      </Col>
+      <Col class="px-1">
+        {#key $stats.data.jobsStatistics[0].histNumNodes}
+          <Histogram
+            data={convert2uplot($stats.data.jobsStatistics[0].histNumNodes)}
+            title="Number of Nodes Distribution"
+            xlabel="Allocated Nodes"
+            xunit="Nodes"
+            ylabel="Number of Jobs"
+            yunit="Jobs"
+          />
+        {/key}
+      </Col>
+    {/if}
   </Row>
 {/if}
 
-<!-- ROW6: JOB LIST-->
+<!-- ROW4+5: Selectable Histograms -->
+{#if !showCompare}
+  <Row>
+    <Col xs="12" md="3" lg="2" class="mb-2 mb-md-0">
+      <Button
+        outline
+        color="secondary"
+        class="w-100"
+        onclick={() => (isHistogramSelectionOpen = true)}
+      >
+        <Icon name="bar-chart-line" /> Select Histograms
+      </Button>
+    </Col>
+    <Col xs="12" md="9" lg="10" class="mb-2 mb-md-0">
+      <InputGroup>
+        <InputGroupText>
+          <Icon name="bar-chart-line-fill" />
+        </InputGroupText>
+        <InputGroupText>
+          Metric Bins
+        </InputGroupText>
+        <Input type="select" bind:value={numMetricBins} style="max-width: 120px;">
+          {#each metricBinOptions as mbin}
+            <option value={mbin}>{mbin}</option>
+          {/each}
+        </Input>
+      </InputGroup>
+    </Col>
+  </Row>
+  {#if selectedHistograms?.length > 0}
+    {#if $stats.error}
+      <Row>
+        <Col>
+          <Card body color="danger">{$stats.error.message}</Card>
+        </Col>
+      </Row>
+    {:else if !$stats.data}
+      <Row>
+        <Col>
+          <Spinner secondary />
+        </Col>
+      </Row>
+    {:else}
+      <hr class="my-2"/>
+      <!-- Note: Ignore '#snippet' Error in IDE -->
+      {#snippet gridContent(item)}
+        <Histogram
+          data={convert2uplot(item.data)}
+          title="Distribution of '{item.metric} ({item.stat})' footprints"
+          xlabel={`${item.metric} bin maximum ${item?.unit ? `[${item.unit}]` : ``}`}
+          xunit={item.unit}
+          ylabel="Number of Jobs"
+          yunit="Jobs"
+          usesBins
+          enableFlip
+        />
+      {/snippet}
+
+      {#key $stats.data.jobsStatistics[0].histMetrics}
+        <PlotGrid
+          items={$stats.data.jobsStatistics[0].histMetrics}
+          itemsPerRow={3}
+          {gridContent}
+        />
+      {/key}
+    {/if}
+  {:else}
+    <Row class="mt-2">
+      <Col>
+        <Card body>No footprint histograms selected.</Card>
+      </Col>
+    </Row>
+  {/if}
+{/if}
+
+<!-- ROW6: JOB COMPARE TRIGGER-->
 <Row class="mt-3">
+  <Col xs="12" md="3" class="mb-2 mb-md-0">
+    <ButtonGroup>
+      <Button color="primary" disabled={(matchedListJobs >= matchedJobCompareLimit && !(selectedJobs.length != 0)) || $initq.fetching} onclick={() => {
+        if (selectedJobs.length != 0) filterComponent.updateFilters({dbId: selectedJobs})
+        showCompare = !showCompare
+      }} >
+        {showCompare ? 'Return to List' : 
+          matchedListJobs >= matchedJobCompareLimit && selectedJobs.length == 0
+            ? 'Compare Disabled'
+            : 'Compare' + (selectedJobs.length != 0 ? ` ${selectedJobs.length} ` : ' ') + 'Jobs'
+        }
+      </Button>
+      {#if !showCompare && selectedJobs.length != 0}
+        <Button class="w-auto" color="warning" onclick={() => {
+          selectedJobs = [] // Only empty array, filters handled by reactive reset
+        }}>
+        Clear
+        </Button>
+      {/if}
+    </ButtonGroup>
+  </Col>
+</Row>
+
+<!-- ROW7: JOB LIST / COMPARE-->
+<Row class="mt-2">
   <Col>
-    <JobList
-      bind:this={jobList} 
-      bind:matchedListJobs
-      {metrics}
-      {sorting}
-      {showFootprint}
-    />
+    {#if !showCompare}
+      <JobList
+        bind:this={jobList}
+        bind:matchedListJobs
+        bind:selectedJobs
+        {metrics}
+        {sorting}
+        {showFootprint}
+        {filterBuffer}
+      />
+    {:else}
+      <JobCompare
+        bind:this={jobCompare}
+        bind:matchedCompareJobs
+        {metrics}
+        {filterBuffer}
+      />
+    {/if}
   </Col>
 </Row>
 
@@ -399,6 +474,7 @@
     bind:showFootprint
     presetMetrics={metrics}
     cluster={selectedCluster}
+    subCluster={selectedSubCluster}
     configName="metricConfig_jobListMetrics"
     footprintSelect
     applyMetrics={(newMetrics) =>