Maybe it could be of use to others to also put this into into some of the other forum "tips" as "tracscription support software".
(maybe there are other useful tools for transcription as well that could be added)

I was not aware of the tracscription support in GP8.
I have minly used the software "Trancribe" before but it has no functionality for notation.

I find it very helpful to be able to drop an audio file into GP8 and align synk points on the audio and then to be able to notate manually or play from midi instrument the corresponding score for that part.