There are many different forms and sizes that various parts can come in.   Craft Maker Pro comes pre populated with a vast list of sizes, weights and options.

 

You can edit this list to add more, delete or only show a smaller range of options.

 

Simply click on the Edit option next to “per” in the menu.

 

If you deselect items they will no longer show up in the drop down.

 

You can add, delete or amend items as you wish.