In studio one , when recording layers , all previous layers will be muted while recording the top layer, i suggest to add a feature that allow us to unmute the previous layers while recording another take simultaneously.
this feature known as (Overdub) in most of loop station devices such as (Headrush looperboard & Boss RC10R) . and its rely helpful in practicing and song writing .
please see how it works in the videos below :
Headrush looper board
Boss RC10R .