Regarding option three, WOW, they really wanted to make it tough. That is just nuts.
What is the point of having 10 numbered state save slots, if you then actually need to create a filename
with a scroll wheel to save the state? Why not just let me enter a state slot number like 1 through 10
and push enter?
On Keysight and other equipment, you just select save state, pick a slot number, and enter. Done.
Whatever the Rigol user-interface (sic) engineers were smoking..... Um, er, ah, I really DON'T want any...
That said, sincere thanks for sharing how to use the 3 features. It is a shame that Rigol did not simply
put what you said into the user manual. (at least, not in a way that most humans could decipher)
Neal