(Coming from Alias, I’m used to something called the “query” tool, which essentially brings up the dialog you saw upon the creation of whatever you selected, and enables you to adjust it without breaking history.)
Hello - drag directly on the handles to adjust. Shift down makes the adjustment to both ends of the curve. Use History to be able to adjust later.(Edit option)
Hmm. I must be missing something then, because if I drag on a control point, I get “this will break history” warning (and I always have record history on).
Hello - BlendSrf can have many handles, all over the place, and the sliders let you affect them all - BlendCrv just has one set of handles. I assume that was the thinking, way back then.