I clicked various times to the right, didn't make much sense.
I came back, started clicking it down, now it made sense, until couldn't, so I clicked right.
Then it clicked, took me something like ten seconds to figure it out, and I am not known to be quickest knife in the shed.
It’s the most unintuitive mechanism unless you’ve already internalized what deck structures should be.
It seems like it’s optimized for the presenter but it’s often used for after the fact sharing with everyone else who won’t know the order.
It really needs a linear mode, with the option to see presenter notes.