**Feature Request** Brief title for your desired feature: Simple 4 function math for attributes dealing with dimensions. How would you like the feature to work? Right now, you must enter an absolute number for, for example, grid size. Would be nice to be able to enter, again for example, a dimension divided by 2 for easy centering. So, instead of 1.27, enter 2.54/2 (2.54 divided by 2). Should work in all text boxes where a number (dimension) is required. The result would be shown; not the equation. Why is this feature important to you? Just a time saver and should eliminate some errors in "hand math".