Map Scaling - allow numerical input

I know we can drag/drop the icon for map (component) scaling, but it would be very nice to also have a numerical input. I have a kml of a property boundary that is about 60 acres in size that I need to map. I would like to capture just outside the actual boundary but it's very hard to precisely control the scaling by dragging even if zoomed in. It would be nice if you clicked on the scale icon if there was a popup for numerical input so I can increase the size by .1% or something. The popup would just disappear once you've completed the drag operation, or hit "enter" (or cancel) for the numerical popup.

Also, might there be a better way to handle the scaling? It takes quite awhile to get visible feedback (the new scale is applied) depending on map size and flight complexity. Like it can take 15 seconds just to see what you just did. I'm just guessing here, but it seems like the app is calculating scaling for the map polygon boundary PLUS the flight path, which can be really complex and take longer depending on camera, altitude and image overlap settings. I think if you just made a temporary copy of just the polygon boundary (with no other data associated with it) and did the scaling on that only it would be closer to realtime results (you could see the polygon boundary growing/shrinking in realtime) rather than having to wait for it to calculate everything every time you move the scale a bit. Then when you have the new boundary where you want it (have it be a different color on top of current map) it can recalculate the flight path and whatever else it needs to after the newly rescaled polygon size is known.

I imagine a popup would be handy for rotate and other similar features as well. "rotate +45°" instead of trying to rotate a polygon that you can't see for several seconds after you've rotated it.