I sort of can not SwapFixures with extensions in the Patch. Like have sub ID Numbers.
Swap Normal Fixture Works fine. Say a Moving light with 12 or more DMX channels.
A Fixture with, I like to call it Sub ID. like an Astere Hyperion Tube
wich I have on 501 has the next address 501.1 / 501.2 /501.3 will not Swap.
I tried it also with a Blinder 901.1 /901.2 here I have the same problem.
no Swap


Try cloning the base fixture ID first. Example 901 at 902. Then try cloning the multipart (sub ID) next. Example 901.1 at 902.1. This should work.

Here’s a link to the manual for the exact procedures.

Hope this helps,