I'm sure many people have been annoyed by the R binding to this action in the last patch and sure it's simple enough to change that yourself, but that's not the reason I'm posting this.
I was wondering whether there is any need for this action to be listed separately and have its own default binding. As far as I can work out, 'Use item' does exactly same thing for things you "can't actually use" ...iirc a nano on the ground would get uploaded if you 'Use' and match the requirements, but then again you still have the option to double click to pick-up.