Renumbering element labels

Hello everyone!

I want to renumber the element labels on the mesh. There is a guidance on this https://abaqus-docs.mit.edu/2017/English/SIMACAECAERefMap/simacae-t-edthelpmesheditrenumberelements.htm

 

However, the following message is displayed:

"This operation cannot be applied to a part that contains geometry"

How can I create a part with no geometry??!