diff --git a/web/src/components/admin/LineItemEditor.tsx b/web/src/components/admin/LineItemEditor.tsx
index 53535e6..42e0674 100644
--- a/web/src/components/admin/LineItemEditor.tsx
+++ b/web/src/components/admin/LineItemEditor.tsx
@@ -15,6 +15,7 @@ import {
   Tooltip,
 } from '@mui/material';
 import AddIcon from '@mui/icons-material/Add';
+import ContentCopyIcon from '@mui/icons-material/ContentCopy';
 import DeleteIcon from '@mui/icons-material/Delete';
 import ArrowUpwardIcon from '@mui/icons-material/ArrowUpward';
 import ArrowDownwardIcon from '@mui/icons-material/ArrowDownward';
@@ -88,6 +89,25 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
     onChange(updated.map((item, i) => ({ ...item, sortOrder: i + 1 })));
   };
 
+  const duplicateItem = (index: number) => {
+    const source = items[index];
+    if (!source) return;
+    const newItem: EditableLineItem = {
+      id: null,
+      description: source.description,
+      quantity: source.quantity,
+      unit: source.unit,
+      unitPrice: source.unitPrice,
+      totalPrice: source.totalPrice,
+      pricingMode: source.pricingMode,
+      sortOrder: 0,
+      source: 'Manual',
+    };
+    const updated = [...items];
+    updated.splice(index + 1, 0, newItem);
+    onChange(updated.map((item, i) => ({ ...item, sortOrder: i + 1 })));
+  };
+
   const moveItem = (index: number, direction: -1 | 1) => {
     const targetIndex = index + direction;
     if (targetIndex < 0 || targetIndex >= items.length) return;
@@ -109,8 +129,8 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
           Line Items ({items.length})
         </Typography>
         {!disabled && (
-          <Button size="small" startIcon={<AddIcon />} onClick={addItem}>
-            Add Row
+          <Button size="small" variant={items.length === 0 ? 'contained' : 'outlined'} startIcon={<AddIcon />} onClick={addItem}>
+            Add Line Item
           </Button>
         )}
       </Box>
@@ -126,7 +146,7 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
               <TableCell sx={{ width: 110 }}>Unit Price</TableCell>
               <TableCell sx={{ width: 110 }}>Total</TableCell>
               <TableCell sx={{ width: 90 }}>Source</TableCell>
-              {!disabled && <TableCell sx={{ width: 100 }}>Actions</TableCell>}
+              {!disabled && <TableCell sx={{ width: 120 }}>Actions</TableCell>}
             </TableRow>
           </TableHead>
           <TableBody>
@@ -217,6 +237,11 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
                 </TableCell>
                 {!disabled && (
                   <TableCell>
+                    <Tooltip title="Duplicate">
+                      <IconButton size="small" onClick={() => duplicateItem(index)}>
+                        <ContentCopyIcon fontSize="small" />
+                      </IconButton>
+                    </Tooltip>
                     <Tooltip title="Remove">
                       <IconButton size="small" color="error" onClick={() => removeItem(index)}>
                         <DeleteIcon fontSize="small" />
@@ -228,10 +253,16 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
             ))}
             {items.length === 0 && (
               <TableRow>
-                <TableCell colSpan={disabled ? 7 : 8} align="center" sx={{ py: 3 }}>
-                  <Typography color="text.secondary">
-                    No line items yet. {!disabled && 'Click "Add Row" to start.'}
+                <TableCell colSpan={disabled ? 7 : 8} align="center" sx={{ py: 5 }}>
+                  <Typography variant="subtitle2">No line items yet</Typography>
+                  <Typography variant="body2" color="text.secondary" sx={{ mt: 0.5, mb: 2 }}>
+                    Add labor, material, equipment, or other cost items.
                   </Typography>
+                  {!disabled && (
+                    <Button variant="contained" startIcon={<AddIcon />} onClick={addItem}>
+                      Add Line Item
+                    </Button>
+                  )}
                 </TableCell>
               </TableRow>
             )}
@@ -241,7 +272,7 @@ export default function LineItemEditor({ items, onChange, disabled = false }: Li
 
       <Box sx={{ display: 'flex', justifyContent: 'flex-end', mt: 1, pr: 2 }}>
         <Typography variant="subtitle1" sx={{ fontWeight: 700 }}>
-          Total: {new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' }).format(subtotal)}
+          Proposal Total: {subtotal === 0 ? 'Pending pricing' : new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' }).format(subtotal)}
         </Typography>
       </Box>
     </Box>
diff --git a/web/src/pages/admin/workspace/AdminWorkspace.tsx b/web/src/pages/admin/workspace/AdminWorkspace.tsx
index 5eff598..9a398bf 100644
--- a/web/src/pages/admin/workspace/AdminWorkspace.tsx
+++ b/web/src/pages/admin/workspace/AdminWorkspace.tsx
@@ -17,10 +17,13 @@ import {
   DialogActions,
   CircularProgress,
   Alert,
+  Tooltip,
+  Link,
 } from '@mui/material';
 import ArrowBackIcon from '@mui/icons-material/ArrowBack';
 import SaveIcon from '@mui/icons-material/Save';
 import CheckCircleIcon from '@mui/icons-material/CheckCircle';
+import NavigateNextIcon from '@mui/icons-material/NavigateNext';
 import SendIcon from '@mui/icons-material/Send';
 import RefreshIcon from '@mui/icons-material/Refresh';
 import HistoryIcon from '@mui/icons-material/History';
@@ -59,6 +62,14 @@ export default function AdminWorkspace() {
     enabled: !!id,
   });
 
+  const { data: similarProposals } = useQuery({
+    queryKey: ['similarProposals', id],
+    queryFn: () => adminApi.getSimilar(id!),
+    enabled: !!id,
+  });
+
+  const hasSimilar = similarProposals && similarProposals.length > 0;
+
   useEffect(() => {
     if (fetchedLineItems) {
       setLineItems(
@@ -214,13 +225,21 @@ export default function AdminWorkspace() {
   return (
     <Box>
       {/* Header */}
-      <Box sx={{ display: 'flex', alignItems: 'center', gap: 2, mb: 2 }}>
-        <Button startIcon={<ArrowBackIcon />} onClick={() => navigate('/admin')}>
-          Back
-        </Button>
-        <Typography variant="h5" sx={{ flexGrow: 1 }}>
-          {proposal.proposalNumber}
-        </Typography>
+      <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, mb: 2 }}>
+        <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5, flexGrow: 1 }}>
+          <Link
+            component="button"
+            underline="hover"
+            onClick={() => navigate('/admin')}
+            sx={{ fontSize: 14, color: '#0B5A73', cursor: 'pointer' }}
+          >
+            Admin Queue
+          </Link>
+          <NavigateNextIcon sx={{ fontSize: 16, color: 'text.secondary' }} />
+          <Typography sx={{ fontSize: 26, fontWeight: 800 }}>
+            {proposal.proposalNumber}
+          </Typography>
+        </Box>
         <Chip label={`Rev ${proposal.currentRevision}`} size="small" variant="outlined" />
         <Chip label={proposal.status} sx={STATUS_CHIP_STYLES[proposal.status]} />
       </Box>
@@ -255,7 +274,7 @@ export default function AdminWorkspace() {
       <Grid container spacing={2}>
         {/* Left Panel: Reference */}
         <Grid size={{ xs: 12, md: 3 }}>
-          <Card sx={{ height: '100%' }}>
+          <Card sx={{ position: 'sticky', top: 88, alignSelf: 'flex-start', maxHeight: 'calc(100vh - 120px)', overflowY: 'auto' }}>
             <CardContent>
               <Typography variant="subtitle2" sx={{ mb: 1 }}>Submission Details</Typography>
 
@@ -290,7 +309,7 @@ export default function AdminWorkspace() {
         </Grid>
 
         {/* Center Panel: Editor */}
-        <Grid size={{ xs: 12, md: 6 }}>
+        <Grid size={{ xs: 12, md: hasSimilar ? 6 : 9 }}>
           <Card>
             <CardContent>
               <Typography variant="subtitle2" sx={{ mb: 1 }}>Refined Scope</Typography>
@@ -315,28 +334,30 @@ export default function AdminWorkspace() {
           </Card>
         </Grid>
 
-        {/* Right Panel: Similar Proposals */}
-        <Grid size={{ xs: 12, md: 3 }}>
-          <Card sx={{ height: '100%' }}>
-            <CardContent>
-              <SimilarProposalsPanel
-                proposalId={id!}
-                onPullLineItem={(item) => {
-                  const maxSort = lineItems.length > 0 ? Math.max(...lineItems.map((i) => i.sortOrder)) : 0;
-                  handleLineItemsChange([
-                    ...lineItems,
-                    { ...item, id: null, sortOrder: maxSort + 1, source: 'Historical' },
-                  ]);
-                }}
-                disabled={!isEditable}
-              />
-            </CardContent>
-          </Card>
-        </Grid>
+        {/* Right Panel: Similar Proposals (hidden when empty) */}
+        {hasSimilar && (
+          <Grid size={{ xs: 12, md: 3 }}>
+            <Card sx={{ height: '100%' }}>
+              <CardContent>
+                <SimilarProposalsPanel
+                  proposalId={id!}
+                  onPullLineItem={(item) => {
+                    const maxSort = lineItems.length > 0 ? Math.max(...lineItems.map((i) => i.sortOrder)) : 0;
+                    handleLineItemsChange([
+                      ...lineItems,
+                      { ...item, id: null, sortOrder: maxSort + 1, source: 'Historical' },
+                    ]);
+                  }}
+                  disabled={!isEditable}
+                />
+              </CardContent>
+            </Card>
+          </Grid>
+        )}
       </Grid>
 
       {/* Action Bar */}
-      <Card sx={{ mt: 2, position: 'sticky', bottom: 16, zIndex: 10 }}>
+      <Card sx={{ mt: 2, position: 'sticky', bottom: 0, zIndex: 10, bgcolor: 'rgba(255,255,255,0.96)', backdropFilter: 'blur(8px)', borderTop: '1px solid #D6E0EA', boxShadow: '0 -4px 12px rgba(15,23,42,0.06)', border: 'none' }}>
         <CardContent sx={{ py: 1.5, display: 'flex', gap: 2, alignItems: 'center', flexWrap: 'wrap' }}>
           {dirty && (
             <Alert severity="info" sx={{ py: 0, flexGrow: 1 }}>Unsaved changes</Alert>
@@ -353,23 +374,59 @@ export default function AdminWorkspace() {
               >
                 Regenerate
               </Button>
-              <Button
-                variant="contained"
-                startIcon={<SaveIcon />}
-                onClick={() => saveMutation.mutate()}
-                disabled={saveMutation.isPending || !dirty}
+              <Tooltip
+                title={!dirty ? 'No unsaved changes' : ''}
+                disableHoverListener={dirty}
               >
-                Save
-              </Button>
-              <Button
-                variant="contained"
-                color="success"
-                startIcon={<CheckCircleIcon />}
-                onClick={() => setApproveDialogOpen(true)}
-                disabled={lineItems.length === 0 || bidTotal <= 0}
+                <span>
+                  <Button
+                    variant="contained"
+                    startIcon={<SaveIcon />}
+                    onClick={() => saveMutation.mutate()}
+                    disabled={saveMutation.isPending || !dirty}
+                  >
+                    Save
+                  </Button>
+                </span>
+              </Tooltip>
+              <Tooltip
+                title={lineItems.length === 0 ? 'Add at least one line item' : ''}
+                disableHoverListener={lineItems.length > 0 && bidTotal > 0}
               >
-                Approve
-              </Button>
+                <span>
+                  <Button
+                    variant="contained"
+                    color="success"
+                    startIcon={<CheckCircleIcon />}
+                    onClick={() => setApproveDialogOpen(true)}
+                    disabled={lineItems.length === 0 || bidTotal <= 0}
+                  >
+                    Approve &amp; Send
+                  </Button>
+                </span>
+              </Tooltip>
+              <Tooltip
+                title={lineItems.length === 0 ? 'Add at least one line item' : ''}
+                disableHoverListener={lineItems.length > 0 && bidTotal > 0}
+              >
+                <span>
+                  <Button
+                    variant="outlined"
+                    color="success"
+                    startIcon={<CheckCircleIcon />}
+                    onClick={() => {
+                      approveMutation.mutate(undefined, {
+                        onSuccess: () => {
+                          navigate('/admin');
+                        },
+                      });
+                    }}
+                    disabled={lineItems.length === 0 || bidTotal <= 0 || approveMutation.isPending}
+                  >
+                    Approve &amp; Next
+                  </Button>
+                </span>
+              </Tooltip>
             </>
           )}