Update : I’ve tested a bit more extensively today on a new project.
This time I tested recording and noticed something I’m not sure of.
Input with the top buttons and selection of range and scale both work perfectly as expected and let you preview the synth/sample sounds very easily before tracking them.
However, not sure if I am missing something, if it is intentional, temporary or just a bug I encounter 
Actually, I still can’t really live record with this input mode. As soon as I hit rec while the sequence is playing, the cursor stops at the position it was when i hit it. So for me right now in this beta, there is only per step recording and no notion of live recording on the timing I hit the keys.
I know there’ve been two distinct wishes about alternate note entry mode and live-recording directly on the mini. Should I assume only the first of the two has been implemented so far ?