Thanks a lot for your suggestions!
Even though many like the “traditional” way of having the X-sheet vertical as you did in the old analogue days, I do appreciate many are used to horizontal timelines from other software and like that best. It would be totally doable to just have the exact same functionality of the AP X-sheet, but as a horizontal layout. At some point we will probably go ahead and have a user setting so you will be able to have it either way.
About zoom: When you zoom holding down Z and dragging, you can do it both left/right and up/down. I believe we have made it to what is considered “standard”. As far as I am aware, all other software, both 2D and 3D use right and/or down to zoom in (magnify) and left/up for zooming out. Also you can zoom using Ctrl on PC and the number keys (Cmd on Mac). Another way is to use ctrl + (plus) or ctrl – (minus) keys (on Mac it is Cmd + and Cmd -). In the latest version you can even use the mouse scroll wheel to zoom.
Could you be more specific on how you want it and maybe which programs you are used to that does it opposite of AP?
Thanks again for your time and nice words!