Seasdes, just in case someone dares challenge me to a lazy duel...zzzzz, i'm ready! π
2 things come to mind, a plugin could be written such that when activated, waits for you to click on a face or edge, finds all connected geometry and groups it.
another is that you could have a key that works as start and end time
ie. press the key > draw > press the key again. everything drawn between presses will be grouped.
quite like the first option, many times i have to draw many sections and group them at the start of a project. this could save a few precious minutes and clicks, which could go towards my alarm clock.