24028 - Some experiment on structural framing family

In this exercise, we will attempt to modify a CHS column and test it with a connection. However, Revit doesn't work well with the one we adjusted. Do you know how to make the connection work with the modified one? Please let me know.
This is the modified framing family:
drive.google.c...

[@minhducpham6332]

Hi Bin, You can try this by modifing a default revit family which can be support connection

[@BINHE615]

Thank you very much. I did exact this and unfortunately it didn't work when I try to add connection, hope some structure people can help.