Joomla
Joomla

You can do it in inspector,UndoRedoSize property can define the undo operation capcity. it is bigger, memory costs more.

Also,set value by code.

Code example:

procedure TMainFrm.Button1Click(Sender: TObject); 
begin 
  MyCAD1.UndoRedoSize:=20; 
  //... 
end;

Joomla
Joomla