diff --git a/ui/builder.html b/ui/builder.html
index d9b0dc1..a027b46 100644
--- a/ui/builder.html
+++ b/ui/builder.html
@@ -237,6 +237,14 @@ input,textarea,button,select{font-family:inherit}
 .filler-textarea{flex:1;width:100%;font-size:13px;font-family:inherit;border:1.5px solid var(--border);border-radius:var(--r);padding:10px 12px;outline:none;resize:none;line-height:1.75;background:var(--surface);color:var(--text)}
 .filler-textarea:focus{border-color:var(--border-focus)}
 .filler-textarea::placeholder{color:var(--muted)}
+
+/* ── 수집/고정 구분 ──────────────────────────── */
+.cnode.collect .cnode-head{background:#e8eeff}
+.cnode.collect.selected .cnode-head{background:var(--accent-bg)}
+.ftpl-sec.is-collect{border-color:var(--accent);background:var(--accent-bg)}
+.ftpl-role{font-size:9px;border-radius:3px;padding:1px 5px;font-weight:700;margin-left:2px;letter-spacing:.03em}
+.ftpl-role.collect{background:var(--accent-bg);color:var(--accent)}
+.ftpl-role.fixed{background:var(--surface-alt);color:var(--muted);border:1px solid var(--border)}
 </style>
 </head>
 <body>
@@ -244,7 +252,7 @@ input,textarea,button,select{font-family:inherit}
 <header class="app-header">
   <span style="font-size:18px">🏗️</span>
   <h1>CTStruct</h1>
-  <span class="badge">v0.5</span>
+  <span class="badge">v0.6</span>
 </header>
 
 <nav class="main-nav">
@@ -716,13 +724,15 @@ function renderCanvas(){
   function renderCNode(node){
     const p=pos.get(node.id); if(!p) return;
     const sel=node.id===selectedNodeId;
+    const col=node.settings?.attributes?.collect==='true';
     const vals=node.values.filter(v=>v.type!=='node').length;
     const kids=node.values.filter(v=>v.type==='node').length;
     const hint=[vals?`값 ${vals}`:'',kids?`하위 ${kids}`:''].filter(Boolean).join(' · ')||'비어있음';
-    cards+=`<div class="cnode${sel?' selected':''}" style="left:${p.x}px;top:${p.y}px" onclick="selectNode('${node.id}')">
+    cards+=`<div class="cnode${sel?' selected':''}${col?' collect':''}" style="left:${p.x}px;top:${p.y}px" onclick="selectNode('${node.id}')">
       <div class="cnode-head">
         <span class="cnode-mark">${esc(node.mark||'·')}</span>
         <span class="cnode-name" title="${esc(node.content||'')}">${esc(node.content||'이름 없음')}</span>
+        ${col?'<span style="font-size:9px;color:var(--accent);font-weight:700;flex-shrink:0;line-height:1">📥</span>':''}
       </div>
       <div class="cnode-foot">
         <span class="cnode-vals">${hint}</span>
@@ -845,8 +855,21 @@ function setNameNL(nid, val){
   n.nameNewline=val; refresh();
 }
 
+function setCollect(nid, on){
+  const n=nodeMap[nid]; if(!n) return;
+  if(on){
+    if(!n.settings.attributes) n.settings.attributes={};
+    n.settings.attributes.collect='true';
+  } else {
+    if(n.settings.attributes){ delete n.settings.attributes.collect; }
+    if(n.settings.attributes && !Object.keys(n.settings.attributes).length) delete n.settings.attributes;
+  }
+  refresh();
+}
+
 function renderStructSettings(node){
   const nid=node.id, nl=node.nameNewline??true;
+  const col=node.settings?.attributes?.collect==='true';
   return `
     <div class="struct-sep">
       <div class="sep-bar-row">
@@ -854,6 +877,11 @@ function renderStructSettings(node){
         <span class="sep-chip${nl?' on':''}"  onclick="setNameNL('${nid}',true)">줄바꿈</span>
         <span class="sep-chip${!nl?' on':''}" onclick="setNameNL('${nid}',false)">없음</span>
       </div>
+      <div class="sep-bar-row">
+        <span class="sep-bar-lbl">역할</span>
+        <span class="sep-chip${!col?' on':''}" onclick="setCollect('${nid}',false)" title="값이 항상 고정 출력됩니다">🔒 고정</span>
+        <span class="sep-chip${col?' on':''}"  onclick="setCollect('${nid}',true)"  title="합치기 시 값이 수집됩니다">📥 수집</span>
+      </div>
     </div>`;
 }
 
@@ -1175,15 +1203,26 @@ function clearFiller(){
   updateFillerPreview();
 }
 
+// ── 수집 섹션 키 추출 ──────────────────────────────────
+function getCollectKeys(root){
+  const keys=new Set();
+  function walk(n){ for(const c of n.children??[]){ if(c.type==='SECTION'){ if(c.attributes?.collect==='true'){ keys.add((c.attributes?.mark??'')+(c.content??'')); } walk(c); } } }
+  walk(root);
+  return keys;
+}
+
 // ── 템플릿 구조 표시 ───────────────────────────────────
 function renderFillerTemplateView(){
   const el=document.getElementById('ftplView');
   if(!FT){ el.innerHTML='<span class="ftpl-empty">← 템플릿을 먼저 불러오세요</span>'; return; }
+  const selective=getCollectKeys(FT).size>0;
   function walkSec(sec, depth){
     const m=sec.attributes?.mark??'';
     const n=sec.content??'';
     const pl=sec.attributes?.per_line;
-    let html=`<span class="ftpl-sec">${depth?'<span class="ftpl-arr">▸</span>':''}<span class="ftpl-mark">${esc(m)}</span><span class="ftpl-name">${esc(n)}</span>${pl?`<span class="ftpl-badge">${esc(pl)}개/줄</span>`:''}</span>`;
+    const isCol=sec.attributes?.collect==='true';
+    const roleHtml=selective?`<span class="ftpl-role ${isCol?'collect':'fixed'}">${isCol?'📥수집':'🔒고정'}</span>`:'';
+    let html=`<span class="ftpl-sec${isCol?' is-collect':''}">${depth?'<span class="ftpl-arr">▸</span>':''}<span class="ftpl-mark">${esc(m)}</span><span class="ftpl-name">${esc(n)}</span>${roleHtml}${pl?`<span class="ftpl-badge">${esc(pl)}개/줄</span>`:''}</span>`;
     for(const c of sec.children??[]) if(c.type==='SECTION') html+=walkSec(c,depth+1);
     return html;
   }
@@ -1250,9 +1289,12 @@ function parseAndMerge(){
   const instances=splitIntoInstances(rawText,titleMark);
   fillerInstCount=instances.length;
   fillerMerged={};
+  const collectKeys=getCollectKeys(FT);
+  const selective=collectKeys.size>0;
   for(const text of instances){
     const parsed=parseInstance(text,titleMark,sectionMarks);
     for(const [key,tokens] of Object.entries(parsed.sections)){
+      if(selective&&!collectKeys.has(key)) continue;
       if(!fillerMerged[key]) fillerMerged[key]=[];
       fillerMerged[key].push(...tokens);
     }
@@ -1264,18 +1306,27 @@ function parseAndMerge(){
 // ── 텍스트 출력 ────────────────────────────────────────
 function mergedToText(){
   if(!FT) return '';
+  const collectKeys=getCollectKeys(FT);
+  const selective=collectKeys.size>0;
   function walkSec(sec){
     const mark=sec.attributes?.mark??'';
     const content=sec.content??'';
     const key=mark+content;
+    const isCol=selective?(sec.attributes?.collect==='true'):true;
     const perLine=parseInt(sec.attributes?.per_line??'0')||0;
-    const tokens=fillerMerged[key]??[];
     let t=mark+content+'\n';
-    if(tokens.length){
-      if(perLine>0){
-        for(let i=0;i<tokens.length;i+=perLine) t+=tokens.slice(i,i+perLine).join(' ')+'\n';
-      } else {
-        t+=tokens.join(' ')+'\n';
+    if(isCol){
+      const tokens=fillerMerged[key]??[];
+      if(tokens.length){
+        if(perLine>0){
+          for(let i=0;i<tokens.length;i+=perLine) t+=tokens.slice(i,i+perLine).join(' ')+'\n';
+        } else {
+          t+=tokens.join(' ')+'\n';
+        }
+      }
+    } else {
+      for(const c of sec.children??[]){
+        if(c.type==='VALUE'&&c.value!=null&&String(c.value).trim()) t+=String(c.value)+'\n';
       }
     }
     for(const c of sec.children??[]) if(c.type==='SECTION') t+=walkSec(c);
@@ -1291,14 +1342,20 @@ function mergedToText(){
 // ── JSON 출력 ───────────────────────────────────────────
 function mergedToJSON(){
   if(!FT) return '{}';
+  const collectKeys=getCollectKeys(FT);
+  const selective=collectKeys.size>0;
   function buildSec(sec){
     const mark=sec.attributes?.mark??'';
     const content=sec.content??'';
     const key=mark+content;
-    const tokens=fillerMerged[key]??[];
-    const valChildren=tokens.map((t,i)=>({
-      id:'mv'+i,type:'VALUE',data_type:'string',value:t
-    }));
+    const isCol=selective?(sec.attributes?.collect==='true'):true;
+    let valChildren;
+    if(isCol){
+      const tokens=fillerMerged[key]??[];
+      valChildren=tokens.map((t,i)=>({id:'mv'+i,type:'VALUE',data_type:'string',value:t}));
+    } else {
+      valChildren=(sec.children??[]).filter(c=>c.type==='VALUE');
+    }
     const secChildren=(sec.children??[]).filter(c=>c.type==='SECTION').map(buildSec);
     return {...sec, children:[...valChildren,...secChildren]};
   }
