Hail Mighty Juan, Forgive invocation of the (photoshop) word.
I
really like PS's ability to Ctrl+Click a curve point. While we can measure with the cursor in Readout mode and manually place the point, I think it w/b a nice addition. Short of that, I'd like to be able to click on the diagonal and not have that point move, but lock on an equal Input/Output location. My way around this is to type one of the values into the other box. Thanks MR. C!