Am 07.09.25 um 18:36 schrieb Henning Hraban Ramm:
> Am 07.09.25 um 14:47 schrieb Rik Kabel:
>>       \setregisterentry[SeeTindex]
>>     [keys:2=zzz,entries:1=punctuation,entries:2={{\em See also} 
>> marking}]%
> 
> And then, I guess: \placeregister[Tindex,SeeTindex]
> 
> Yes, thank you, that’s an option I didn’t consider. I already have 5 
> registers, another one won’t hurt.

Ok, I implemented it in my book, and it works like I wanted (see attached).
Thank you!

Hraban