diff --git a/docs/features/core.md b/docs/features/core.md
deleted file mode 100644
index 9cbb77b..0000000
--- a/docs/features/core.md
+++ /dev/null
@@ -1,31 +0,0 @@
-# @idraw/core
-
-- [x] Scale canvas
-- [x] Scroll canvas
-- [x] Render by requestAnimateFrame
-- [x] Image load queue
-- [] Input data by `any` type `core.initData/core.setData`
-- Render data's elements
-  - Basic box
-    - [x] Border
-    - [x] Radius
-    - [] Gradient Color
-  - [x] Text
-    - [x] Text content
-    - [x] Font size
-    - [x] Font family
-    - [x] Font color
-  - Rect
-    - [x] Rect content
-  - Circle
-    - [] Rect content
-  - Image
-    - [x] Image content
-  - [x] SVG
-    - [x] SVG content
-- [x] Drag elements
-- [x] Move elements' index
-- [x] Rotate elements
-- [x] Transform elements's size
-- [X] Loader update image/svg resource
-
diff --git a/docs/features/idraw.md b/docs/features/idraw.md
deleted file mode 100644
index 3b36807..0000000
--- a/docs/features/idraw.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# @idraw
-
-- [] Export Picture
-- [] Export source file
-- [x] Undo action record
\ No newline at end of file
diff --git a/docs/todo/core.md b/docs/todo/core.md
new file mode 100644
index 0000000..055b745
--- /dev/null
+++ b/docs/todo/core.md
@@ -0,0 +1,31 @@
+# @idraw/core
+
+- *[x] Scale canvas
+- *[x] Scroll canvas
+- *[x] Render by requestAnimateFrame
+- *[x] Image load queue
+- *[] Input data by `any` type `core.initData/core.setData`
+- Render data's elements
+  - Basic box
+    - *[x] Border
+    - *[x] Radius
+    - *[] Gradient Color
+  - *[x] Text
+    - *[x] Text content
+    - *[x] Font size
+    - *[x] Font family
+    - *[x] Font color
+  - Rect
+    - *[x] Rect content
+  - Circle
+    - *[] Rect content
+  - Image
+    - *[x] Image content
+  - *[x] SVG
+    - *[x] SVG content
+- *[x] Drag elements
+- *[x] Move elements' index
+- *[x] Rotate elements
+- *[x] Transform elements's size
+- *[X] Loader update image/svg resource
+
diff --git a/docs/todo/idraw.md b/docs/todo/idraw.md
new file mode 100644
index 0000000..7a6e3ee
--- /dev/null
+++ b/docs/todo/idraw.md
@@ -0,0 +1,11 @@
+# idraw
+
+- Export
+  - *[] Export image
+  - *[] Source file
+- Undo action record
+  - *[] Action records's stack
+  - *[] Return recors's count
+- Redo action record
+  - *[] Action records's stack
+  - *[] Return recors's count
\ No newline at end of file