Dynamically exclude extensions in the same call or pickup group when calling queue

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One year ago I was looking for a way to suppress calls to the same extension:

Dynamically exclude own extension from queue or ring group

I want to suppress calls from all extensions to themselves so that your phone doesn’t ring when you’re calling a ring group or queue you’re in. @lgaetz already recommended using a dialplan hook. I used macro-dialout-one-predial-hook and macro-dial-ringall-predial-hook for that and this works in fact well, but not for ring groups. When calling a ring group you are in, the phone rings, but when answering on a different line, it hangs up (like it should before even ringing). That’s the code I used…

Now I’m asking myself if it is possible to do the same, but with call or pickup groups. Maybe one of you is already using something like that or has an idea how to realize this.

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Any idea would be appreciated.