What I want is an option for entering the X Y and Z coordinates on the Move dialog whereby the move is calculated to be from the current location to the values entered. To do that now (and usually I am trying to move a point) I have to select the point and note the current position, press M, and use a calculator to determine the deltas needed to get from here to there and enter my calculations in the boxes.
In cases like these, I am trying to replicate a portion of some existing object design, working from physical measurements, usually starting my sketch based around the origin. I want to preserve the parametric abilities so I can take advantage of them as my drawing evolves.
This should not require much core change as best I can see, it is changing the dialog to allow the computer to figure it out rather than requiring me to use a calculator. I don't think I would want this new behavior to be the default, I only want it to happen if I click on something (perhaps a little icon like the ones for move pivot and such). Basically, when specified, I want my resulting relative move amount to be "entry minus current position" instead of just the entry amount.
