Hello.
After connecting the app to the device there is a number displayed in the center of the App, which changes if you press the stop button (sometimes).
May be I am just having a sense moment. But what is that number for? It seems important given its prominence. 
Thanks.
It’s the current step that the sequence is in. It will move from 1 to 16 as you play the sequence. Pausing the sequencer by pressing stop once will keep it at the current step, and if you press stop again it will go back to the beginning of the sequence at 1.
Oh man, that should have been so obvious to me. This makes perfect sense and thank you for taking the time to answer. Much appreciated.