diff --git a/package-lock.json b/package-lock.json
index d66bf175..98cebbb1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13408,7 +13408,7 @@
     "fast-levenshtein": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz",
-      "integrity": "sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==",
+      "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
     "fast-uri": {
@@ -15754,7 +15754,7 @@
     "json-stable-stringify-without-jsonify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz",
-      "integrity": "sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw==",
+      "integrity": "sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=",
       "dev": true
     },
     "json-stringify-safe": {
@@ -16690,7 +16690,7 @@
     "natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
-      "integrity": "sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==",
+      "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
       "dev": true
     },
     "negotiator": {
@@ -22866,7 +22866,7 @@
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
-      "integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
+      "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
     "through2": {
diff --git a/src/components/common/CascadeSelector.jsx b/src/components/common/CascadeSelector.jsx
index d907c4ae..4b9664a1 100644
--- a/src/components/common/CascadeSelector.jsx
+++ b/src/components/common/CascadeSelector.jsx
@@ -1,4 +1,5 @@
 import React from 'react'
+import { useTranslation } from 'react-i18next'
 import Box from '@mui/material/Box'
 import TextField from '@mui/material/TextField'
 import Collapse from '@mui/material/Collapse'
@@ -17,22 +18,22 @@ import CodeIcon from '@mui/icons-material/CodeOutlined'
 const PRESETS = [
   {
     id: 'none',
-    label: 'None',
+    labelKey: 'common.none',
     params: {},
   },
   {
     id: 'sourcemappings',
-    label: 'Source Mappings',
+    labelKey: 'reference.source_mappings',
     params: { method: 'sourcemappings' },
   },
   {
     id: 'sourcetoconcepts',
-    label: 'OpenMRS',
+    labelKey: 'reference.all_source_concepts_and_mappings',
     params: { method: 'sourcetoconcepts', mapTypes: 'Q-AND-A,CONCEPT-SET', cascadeLevels: '*', returnMapTypes: '*' },
   },
   {
     id: 'custom',
-    label: 'Custom',
+    labelKey: 'common.custom',
     params: null,
   },
 ]
@@ -58,10 +59,12 @@ const buildQueryString = (params, transform) => {
 }
 
 const CascadeSelector = ({ onChange, conceptUrl, collectionUrl, showPreviewDefault = false }) => {
+  const { t } = useTranslation()
   const [selectedPresetId, setSelectedPresetId] = React.useState('none')
   const [transform, setTransform] = React.useState(false)
   const [customParams, setCustomParams] = React.useState(DEFAULT_CUSTOM_PARAMS)
   const [showPreview, setShowPreview] = React.useState(showPreviewDefault)
+  const [showAdvanced, setShowAdvanced] = React.useState(false)
 
   const selectedPreset = PRESETS.find(p => p.id === selectedPresetId)
   const baseParams = selectedPresetId === 'custom' ? customParams : (selectedPreset.params || {})
@@ -85,9 +88,8 @@ const CascadeSelector = ({ onChange, conceptUrl, collectionUrl, showPreviewDefau
 
   return (
     <Box>
-      {/* Cascade dropdown + Transform checkbox on same row */}
       <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5 }}>
-        <FormControl size="small" sx={{ minWidth: 180 }}>
+        <FormControl size="small" sx={{ minWidth: 220 }}>
           <InputLabel>Cascade</InputLabel>
           <Select
             value={selectedPresetId}
@@ -95,33 +97,10 @@ const CascadeSelector = ({ onChange, conceptUrl, collectionUrl, showPreviewDefau
             onChange={e => setSelectedPresetId(e.target.value)}
           >
             {PRESETS.map(preset => (
-              <MenuItem key={preset.id} value={preset.id}>{preset.label}</MenuItem>
+              <MenuItem key={preset.id} value={preset.id}>{t(preset.labelKey)}</MenuItem>
             ))}
           </Select>
         </FormControl>
-
-        <Box sx={{ display: 'flex', alignItems: 'center' }}>
-          <FormControlLabel
-            control={
-              <Checkbox
-                size="small"
-                checked={transform}
-                onChange={e => setTransform(e.target.checked)}
-              />
-            }
-            label="Transform"
-            sx={{ mr: 0, '& .MuiFormControlLabel-label': { fontSize: '0.875rem' } }}
-          />
-          <Tooltip
-            title="Applies the OpenMRS transform to restructure cascade results into OpenMRS-compatible format. Only relevant when using OpenMRS or a custom sourcetoconcepts cascade."
-            placement="top"
-            arrow
-          >
-            <IconButton size="small" tabIndex={-1} sx={{ p: 0.25, color: 'text.secondary' }}>
-              <HelpOutlineIcon sx={{ fontSize: '1rem' }} />
-            </IconButton>
-          </Tooltip>
-        </Box>
       </Box>
 
       {/* Custom params form */}
@@ -191,6 +170,45 @@ const CascadeSelector = ({ onChange, conceptUrl, collectionUrl, showPreviewDefau
         </Box>
       </Collapse>
 
+      {/* Advanced options */}
+      <Box sx={{ mt: 1, display: 'flex', alignItems: 'center', gap: 1 }}>
+        <Chip
+          size="small"
+          label={showAdvanced ? t('reference.hide_advanced') : t('reference.advanced')}
+          variant="outlined"
+          clickable
+          onClick={() => setShowAdvanced(v => !v)}
+          sx={{ fontSize: '0.7rem' }}
+        />
+      </Box>
+
+      <Collapse in={showAdvanced} unmountOnExit>
+        <Box sx={{ mt: 1.5, pl: 1.5, borderLeft: '2px solid', borderColor: 'divider' }}>
+          <Box sx={{ display: 'flex', alignItems: 'center' }}>
+            <FormControlLabel
+              control={
+                <Checkbox
+                  size="small"
+                  checked={transform}
+                  onChange={e => setTransform(e.target.checked)}
+                />
+              }
+              label="Transform"
+              sx={{ mr: 0, '& .MuiFormControlLabel-label': { fontSize: '0.875rem' } }}
+            />
+            <Tooltip
+              title={t('reference.transform_tooltip')}
+              placement="top"
+              arrow
+            >
+              <IconButton size="small" tabIndex={-1} sx={{ p: 0.25, color: 'text.secondary' }}>
+                <HelpOutlineIcon sx={{ fontSize: '1rem' }} />
+              </IconButton>
+            </Tooltip>
+          </Box>
+        </Box>
+      </Collapse>
+
       {/* API call preview */}
       <Box sx={{ mt: 1.5, display: 'flex', alignItems: 'center', gap: 1 }}>
         <Chip
diff --git a/src/i18n/locales/en/translations.json b/src/i18n/locales/en/translations.json
index de8bdb4c..1a36f747 100644
--- a/src/i18n/locales/en/translations.json
+++ b/src/i18n/locales/en/translations.json
@@ -274,12 +274,16 @@
     "intensional": "Intensional",
     "extensional": "Extensional",
     "cascade": "Cascade",
-    "unresolved": "Unresolved",
+    "source_mappings": "Source Mappings",
+    "all_source_concepts_and_mappings": "All Source Concepts & Mappings",
     "versioned_repo": "Versioned (Repo)",
     "versioned_resource": "Versioned (Resource)",
     "resolved_repo": "Resolved Repo",
     "raw": "Raw",
-    "translation": "Translation"
+    "translation": "Translation",
+    "advanced": "Advanced",
+    "hide_advanced": "Hide advanced",
+    "transform_tooltip": "Converts the reference to extensional reference(s). References for resolved concepts or mappings will be stored as individual extensional references instead of intensional reference(s)."
   },
   "checksums": {
     "standard": "Standard Checksum",
@@ -321,7 +325,6 @@
     "compositional": "Compositional",
     "version_needed": "Version Needed",
     "meta": "Meta",
-    "revision_date": "Revision Date",
     "short_code": "Short Code",
     "full_name": "Full Name",
     "short_name": "Short Name",
@@ -547,7 +550,6 @@
     "last_name": "Last Name",
     "company": "Company",
     "email_address": "Email Address",
-    "location": "Location",
     "profile_update_success": "Profile updated successfully",
     "profile_update_failure": "An error occurred while updating profile.",
     "copy_api_token": "Copy API token",
diff --git a/src/i18n/locales/es/translations.json b/src/i18n/locales/es/translations.json
index cbff07ee..075df0f5 100644
--- a/src/i18n/locales/es/translations.json
+++ b/src/i18n/locales/es/translations.json
@@ -30,6 +30,8 @@
     "select": "Seleccionar",
     "search": "Buscar",
     "for": "para",
+    "none": "Ninguno",
+    "custom": "Personalizado",
     "load_more": "Cargar más"
   },
   "errors": {
@@ -67,6 +69,14 @@
   "mapping": {
     "mappings": "Mapeos"
   },
+  "reference": {
+    "cascade": "Cascada",
+    "source_mappings": "Mapeos de la fuente",
+    "all_source_concepts_and_mappings": "Todos los conceptos y mapeos de la fuente",
+    "advanced": "Avanzado",
+    "hide_advanced": "Ocultar avanzado",
+    "transform_tooltip": "Convierte la referencia en referencia(s) extensional(es). Las referencias para conceptos o mapeos resueltos se almacenaran como referencias extensionales individuales en lugar de referencia(s) intensional(es)."
+  },
   "repo": {
     "repos": "Repositorios",
     "repo": "Repositorio",
diff --git a/src/i18n/locales/zh/translations.json b/src/i18n/locales/zh/translations.json
index 04f8739b..e4b5a350 100644
--- a/src/i18n/locales/zh/translations.json
+++ b/src/i18n/locales/zh/translations.json
@@ -88,6 +88,7 @@
     "target": "目标",
     "properties": "特性",
     "custom": "自定义",
+    "none": "无",
     "load_more": "加载更多"
   },
   "errors": {
@@ -274,7 +275,6 @@
     "last_name": "姓氏",
     "company": "公司",
     "email_address": "电子邮件地址",
-    "location": "位置",
     "profile_update_success": "已成功更新个人资料",
     "profile_update_failure": "更新个人资料时出现错误。",
     "copy_api_token": "复制 API 令牌",
@@ -288,6 +288,14 @@
     "user_has_not_created_public_repos_suffix": "尚未创建任何公开的存储库",
     "recent_activity": "最近的活动"
   },
+  "reference": {
+    "cascade": "级联",
+    "source_mappings": "源映射",
+    "all_source_concepts_and_mappings": "所有源概念和映射",
+    "advanced": "高级",
+    "hide_advanced": "隐藏高级",
+    "transform_tooltip": "将引用转换为外延引用。已解析概念或映射的引用将作为单独的外延引用存储，而不是作为内涵引用存储。"
+  },
   "search": {
     "filters": "筛选项",
     "concepts": "概念",