I just want to say I love you and thank you for making this addon 
I design parts for 3d printing (mechanical mostly) and I also design my own 3d printers and I can see this helping a ton. Still need to get used to it because I’m so used to moving the cursor and snapping and scaling and all using other methods but I will most definitely give this a thorough shot.
Do would like to ask for a different way to remap keys tho. I use the Dvorak keyboard layout (managed to change all the key mappings using this script: Dvorak Key Configration Transformer). I can’t snap to Edges, for example, because my “E” key is actually the period “.” key and it’s not an available option. Also, had to re-do the key mappings because I couldn’t change the default ones for G, R and S.
