Auto fixed number rebar after user extension

Hi everyone!
I have been trying hard to handle steel group problems after using the extension tool! Because after finishing it is the single rebar! So I have the idea of deleting 2 rebar,remain 1 rebar and then using fixed number 3, but I still can not use dynamo by used node in bim4structural.rebar to replace this manual process. Please !Take a look at my ideas with the image below, I want like option 2

I am really happy to receive help from someone

I am having the same problem. Can you Help me

I have the same problem as you. Can anyone help me. Thanks