Entering line lengths and circle diameters on the fly

 From:  mickelsen
When I start drawing a line or circle (and, I'm sure, other things), I specify a starting point and then I have to drag the pointer across the screen the to get to a DRO window where I can start entering a length or other type of value, so I get a long line or a huge circle or sphere on the screen until I can enter the right value. It would be nice to be able to call up a value-entering window right there. I've tried pushing mouse buttons but that doesn't work, I've tried just starting to type, but that doesn't work. Is there a way to make that little calculator-like keyboard pop up so that I can use is anywhere? Oh, and BTW, it would be nice to have a way to specify units on that little keyboard. Just because I'm working in inches doesn't mean I don't need to input in mm once in a while, also.