I use groupy mostly for tabs in explorer.  2 things:

1. Add new tab (+) should be configurable.  Currently it copies the active tab, it would be great if it opened up at the default for explorer. (In my case that would be "this computer").

2. closing all tabs in a group and closing that window should be with a red x or with a button as below. 

3. On that not I humbly beseech you to move menu commands to buttons on the tab bar like this:

(in order: groups dropdown, ungroup, close all but this window, close all windows)

Anyone else in groupy land that would find something like this useful?