I'm trying to figure out how to turn off the auto select all when switching to another keyframe. This is just an annoying little thing that tends to waste some time because I have to change to the selection to and click on the canvas to unselect everything. Does anyone know where I could find this button or in the preference setting?
Moving to Flash forum.
There are a few different things that you might mean. If you select something that is a motion tween, the whole span does get selected, but changes that you do only affect the current frame. In general though, if you click somewhere and the whole range is selected, a modifier key will make it do the opposite. On Mac for example, Command-click in a layer will just select a single frame.
If that doesn't give you ideas, can you please list exact steps to show a problem case?