diff --git a/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCache.java b/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCache.java
index 43ffa51..78d6d14 100644
--- a/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCache.java
+++ b/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCache.java
@@ -51,17 +51,17 @@ public class ConfCache {
             // faster than find in KEY_CACHE
             return Collections.emptyMap();
         }
-        return ConfCacheGetUtils.get(file, KEY_MID_EXT, KEY_CACHE);
+        return ConfCacheGetUtils.filterPathNameExt(file, KEY_MID_EXT, KEY_CACHE);
     }
 
     @NotNull
     public static Map<String, Map<String, List<String>>> docMap(@Nullable Project project, @NotNull VirtualFile file) {
-        return ConfCacheGetUtils.get(file, DOC_MID_EXT, DOC_CACHE);
+        return ConfCacheGetUtils.filterPathNameExt(file, DOC_MID_EXT, DOC_CACHE);
     }
 
     @NotNull
     public static Map<String, Map<String, List<String>>> treeMap(@Nullable Project project, @NotNull VirtualFile file) {
-        return ConfCacheGetUtils.get(file, TREE_MID_EXT, TREE_CACHE);
+        return ConfCacheGetUtils.filterPath(file, TREE_CACHE);
     }
 
     static void clearAll() {
diff --git a/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCacheGetUtils.java b/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCacheGetUtils.java
index 285604d..560853f 100644
--- a/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCacheGetUtils.java
+++ b/src/main/java/io/github/linwancen/plugin/show/ext/conf/ConfCacheGetUtils.java
@@ -28,15 +28,12 @@ class ConfCacheGetUtils {
      * @return {@code <sortKey, T>}
      */
     @NotNull
-    static <T> TreeMap<String, T> get(@NotNull VirtualFile file,
-                                      @NotNull String confMidExt,
-                                      @NotNull Map<VirtualFile, T> cache) {
+    static <T> TreeMap<String, T> filterPathNameExt(@NotNull VirtualFile file,
+                                                    @NotNull String confMidExt,
+                                                    @NotNull Map<VirtualFile, T> cache) {
         String path = file.getPath();
         String name = file.getName();
         String ext = file.getExtension();
-        if (ext == null) {
-            ext = "";
-        }
         TreeMap<String, T> map = new TreeMap<>();
         int max = path.length();
         int length = String.valueOf(max).length();
@@ -53,15 +50,48 @@ class ConfCacheGetUtils {
                 map.put(levelStr + "\b" + confPath, entry.getValue());
             } else if (confName.endsWith((name + confMidExt))) {
                 map.put(levelStr + "\t" + confPath, entry.getValue());
-            } else if ((ext + confMidExt).equals(confName)) {
-                map.put(levelStr + "\n" + confPath, entry.getValue());
-            } else if (confName.endsWith((ext + confMidExt))) {
-                map.put(levelStr + "\f" + confPath, entry.getValue());
+            } else if (ext != null) {
+                if ((ext + confMidExt).equals(confName)) {
+                    map.put(levelStr + "\n" + confPath, entry.getValue());
+                } else if (confName.endsWith((ext + confMidExt))) {
+                    map.put(levelStr + "\f" + confPath, entry.getValue());
+                }
             }
         }
         return map;
     }
 
+    /**
+     * <br>file:
+     * <br>a/b/c.ext
+     * <br>
+     * <br>configure file priority:
+     * <br>a/b/any.tree.tsv
+     * <br>a/any.tree.tsv
+     *
+     * @return {@code <sortKey, T>}
+     */
+    @NotNull
+    static <T> TreeMap<String, T> filterPath(@NotNull VirtualFile file,
+                                             @SuppressWarnings("SameParameterValue")
+                                             @NotNull Map<VirtualFile, T> cache) {
+        String path = file.getPath();
+        TreeMap<String, T> map = new TreeMap<>();
+        int max = path.length();
+        int length = String.valueOf(max).length();
+        for (Map.Entry<VirtualFile, T> entry : cache.entrySet()) {
+            VirtualFile confFile = entry.getKey();
+            String confPath = confFile.getPath();
+            int level = level(path, confPath);
+            if (level == 0) {
+                continue;
+            }
+            String levelStr = StringUtils.leftPad(String.valueOf(max - level), length, '0');
+            map.put(levelStr + confPath, entry.getValue());
+        }
+        return map;
+    }
+
     private static int level(String path, String confPath) {
         path = srcPath(path);
         confPath = srcPath(confPath);
diff --git a/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL-file.tsv.tree.tsv b/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL-file.tsv.tree.tsv
index 7b50aea..4c1947d 100644
--- a/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL-file.tsv.tree.tsv
+++ b/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL-file.tsv.tree.tsv
@@ -2,7 +2,7 @@ COBOL-file.tsv.tree.tsv	📝 COBOL 相关文件注释
 
 COBOL.cbl.key.tsv	COBOL 必要【关键字】
 
-COBOL-struct.cbl.doc.tsv	COBOL 文件结构【关键字】
+COBOL-struct.cbl.doc.tsv	COBOL 文件结构
 
 COBOL-data.cbl.key.tsv	COBOL 数据部必要【关键字】
 COBOL-data-layout.cbl.key.tsv	COBOL 数据布局【关键字】
@@ -17,4 +17,4 @@ COBOL-loop.cbl.key.tsv	COBOL 循环【关键字】(非必要）
 COBOL-string.cbl.key.tsv	COBOL 字符串【关键字】(非必要）
 
 COBOL_IDEA.md	COBOL IDEA 高亮设置
-COBOL_keyword1.md	COBOL COBOL IDEA 高亮 普通关键字
\ No newline at end of file
+COBOL_keyword1.md	COBOL IDEA 高亮 普通关键字
\ No newline at end of file
diff --git a/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL_IDEA.md b/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL_IDEA.md
index ab87e4b..34a7aea 100644
--- a/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL_IDEA.md
+++ b/src/test/java/io/github/linwancen/plugin/show/demo/ext/cobol/COBOL_IDEA.md
@@ -1,4 +1,4 @@
-# IDEA COBOL 高亮配置
+# COBOL IDEA 高亮配置
 
 - File -> Settings -> Editor -> File Types
 - 文件 -> 设置 -> 编辑器 -> 文件类型