This tool is provided for special purpose. while using RepliCAM you uses some reference size rectangle many times so you have add its length and width frequently. To avoid this you simply add this size in table. For that select 'Settings Menu > Save Stand'. You will get a dialog box which contain a table as shown :
In above figure the table contain four columns Name, Length, Width and Remark you add data relative to that and save it. To add new row go to last row and last column and press 'TAB'.