I take it this is the place to suggest or to explain yout thoughts
1. I usually TAS with Nintendo DS, which makes me use the Touchscreen and microphone. Let's say I want to write an 8 frame long sequence. Let's say I have written a sequence of inputs on the "Touch X" Column that says: 99 99 50 50 20 20 1 1. Then I select the sequence with shift, and I clone the sequence of inputs 99 times.
Now, I may realize it is more optimal to write 99 99 45 45 20 20 1 1, instead of 99 99 50 50 20 20 1 1. It would be very useful if I could Select the sequence with Shift and modify the frames which contain the number 50 exclusively. Instead of deleting it whole and write the new sequence, then clone it 99 times.
I find myself trying to guess if the best value is 50, 44, 51, 45 or 48 many times. And so I have to keep cloning 99 times, then deleting it all again. Sometimes I have to clone the sequence 99 times, and TAS a bit after the cloned sequences, otherwise I cannot verify if I got the result I was looking for. Then I have to delete it all again.
They say madness is defined as "doing the same thing over and over", and at some point you are just tired of cloning the same sequence 99 times, leave it play, then delete it all again.
Now imagine I need to do that for every number. First for the number 50, then for the number 99, then for the number 20, then for the number 1. And then I have to see how does it (the modified value of the sequence) affect the other values. Maybe 45 is better than 50, maybe 95 is better than 99, but maybe combining 95 with 45 does not work well. Maybe 97 works great with 45. It's a tedious process.
I was hoping that an editor of values can be added to Bizhawk, since I have not found any. I wish that I can select my 99 clones of the sequence with shift, then edit every number 50 within it and replace it with the number 45. A "Sequence Editor".
I envy word office, because their users can "Search: hellow -> Replace all with: hello", which is very helpful. I understand I'm using a movie editor, which is different than a word, but I also think a tool like that is convenient for Bizhawk TAS Studio. An experience enhancer.
FOR THE RECORD: I am TASing short minigames, like a Hammer Throw spin on a touchscreen. Then I clone the spin (99 times). I see this trend on many minigames.
2. Many times, I have found myself cloning a sequence of inputs 99 times, only to have to Control Z 99 times to undo the cloning. Once per cloned sequence. It's a minor inconvenience, I can always select the 99 clones with shift and delete everything. But I'd like to have a Control Z X times option if I right click. Or to just undo the action of cloning 99 times all together.
FINAL: I understand these situations might be anecdotal, but I hope they are taken into account for the next update of Bizhawk emulator.