Supported Undo/Redo Operations
You can undo and redo commands that are available on the Drawing user interface as listed below:
Commands on the Edit Menu
Cut
Paste
Delete
Undo Delete
Set Previously Displayed Sheet
Command on the Layout Tab
(Move to Sheet)
Commands on the Annotate Tab
(Attachment)
* 
The above command will only support moving/changing of leaders of detail items with leaders, excluding dimensions. Addition and deletion of references will not be supported and will clear the stack.
(Dimension)
(Ordinate Dimension)
(Auto Ordinate Dimension)
(Ordinate Reference Dimension)
(Auto Ordinate Reference Dimension)
(Note)
(Balloon Note)
Commands on the Sketch Tab
(Divide at Intersection)
(Divide by Equal Segments)
(Corner)
(Bound)
(Length)
(Increment)
(2 Tangent Fillet)
(3 Tangent Fillet)
(Chamfer)
Annotation Commands
Dynamic Movement
Move leader
Move text
General Shortcut Commands
Toggle Leader Type
Add Leader
Change Note Type
Hot Zone Shortcut Commands
Change Reference
Insert Jog
Remove Jog
Delete
Arrow Style