Not one-by-one. Meaning - if you make edits to 3 different parameters in one session: param1, then param2, then param3 -- you can't back out just param2 so that param1 and param2 edits remain. You can back out of all your edits since recalling the original Performance from memory simply by moving to the next Performance (DATA DIAL) then moving back.
The problem is that the link requires a "comma" - and the forum's code to translate text that "looks" like a link to an actual link trips up on the comma. You would have had to cut-and-paste the previous text into your browser's address field. I've edited the link by escaping the comma (switch "," to "%2C" ) so now the forum's link parser doesn't drop off the text past the comma. Seems to work OK now.