Write mode. When I insert one of “Time signatures - Used in this flow”, it also inserts the End repeat - Start repeat barlines I used with this time signature. Is this what it means to do?
I think ideally Dorico wouldn’t do this. It happens because, under the hood, barlines are given rise to by time signatures, so if you have a time signature with barlines associated with it, that’s what ends up being created when you create the time signature via ‘Used in This Flow’. I’ll make a note of this and we’ll see if we can sort this out in future.