And well I think controls is very cool part of the patch. It's very simple. Just a chain of I(F)'s looped by (O)ffset.
So you place a character in the output of bottom F, it gets read by offset and (V)ariable operands and instantly erased.
Then assign different actions based on the character coming from the variable.

I'm not very good at explaining things (also the character limit), but #Orca -people should understand