[Solved] 4.0.2, still a few problems/ideas

Hi,
i'm enjoying to play with my ddj-rz and rekodbox. as a fulltime-dj this software unfortunately is not there to play it at a "real event" - not yet. I still have a few problems or ideas:

problems:
- dropout while trying to change the beatgrid at perfomance mode
- dropout while playing around with "sample mode"
- can't set the "first beat". i can set a new "first beat", but if i change tempo i can see that this is not the real first beat
- played state of the tracks

ideas:
- "match" button in perfomance mode! i like the idea of the "match", but i need it while discovering new mixable songs
- it's complicated to "beat-jump" (shift and "hot cue" buttons). would like to just press on the hot cue again oder change the "slicer" with "beat jump". i'm using the beatjumb often and never using the slicer...
- possibility to change the "key name". i'd like to work with numbers...
- i liked the favorite playlists in traktor. something similar would be nice

hey i really like it and thank you "pioneer-rekordbox-online-man" for answering these questions a lot and don't be bothered of all the stupid questions :)