I have a hard time moving adjustment sliders in small increments (i.e. a unit or fraction of a unit) using the mouse. It's a pain to have to retype values into the number box to change the values. Is there any way to move the sliders side to using the keyboard? For example in PTLens, you can "activate" a slider by clicking on its handle. Then hitting the left or right arrow key will move the slider one unit or 1/10 of a unit at a time, it's a real easy way to make small incremental changes when adjusting for parallelism or rotation for example. (This is where I am making tiny changes in rotation, for example, the redraw lag is such that I can't just watch the screen in real time to make the adjustment).
Note to Eric: if this isn't present in ACR or PS now, it would be a great addition for ease of use, IMO.