Upvote. This is also useful for upcharges for take out or to go orders. 

Upvote! This is extremely useful when building menus and cleaning up menus. I'm attaching an example from another system. Here you can see the item group (category). Additionally, here we can "select all" items within a category and make bulk edits to items only within that category.

Upvote here. I also think it would be a good idea to utilize the timeclock icon that exists persistently to be able to adjust time or clock someone out. It would be nice if a manager could login and clock anyone out.

HUGE upvote for this. Adjusting time entires is entirely too difficult currently