ok thank you. then i will describe it here and later in the mentioned thread. my problem: i want to replace notes inside a polyphonic signal. the polyphonic signal (16 channels) is a 16step sequence. so if replace e.g. the third channel, i replace the third step.
the hurdle is, that i want to do that during the running sequence. therefore i use infix from stoermelder to replace. because it is sensible for 0V i use mood from sapphire. then only the channel, that is triggered in mood go through. so far so good. that works.
BUT: i cannot patch a polyphonic signal to mood. i have to split and patch the sixteen channels to mood. i must use four of them.
is this intentional or is it possible to feed a polyphonic signal with gates to the gate input of mood to select? i am not able to do that.
second problem:
i want to first select the new note and step. then i need a trigger to through. that could be possible with triggerbuffer? but it is not latched, isn’t it?
btw: the whole thing is part of a bigger patch based on the performance /string patch from suzanne ciani. unfortunately many users/pc that tried to help could not run it. but i can upload it here to investigate. for now it is not documented well.
it is work in progress 
but it is not neccessary related with my question/problem.