A little something before the weekend... http://storage.stardock.com/files/beta/Groupy1.02_beta_sd.exe.
Adds: support for changing the hotkey for international users
Adds: option to only group when right button is also held down when dragging
Fixes: ungrouping an autogrouping window getting regrouped the next time a window opened
Fixes: hide taskbar buttons option not working on Win7/8 (does not work with Modern apps, as they are special...)
1.01 additions and fixes are at https://www.stardock.com/products/groupy/history_beta.