Is there any option or defaults setting which allows me to drag a TM tab out of the TM window (onto desktop for example) and have it work as if you're trying to 'Move Tab to New Window'

I'm probably imagining it, but I feel like you could do this at one point.

Not a huge issue, as I can see I can assign a keyboard shortcut for it, it just seems a little odd that it always treats dragging as the file contents

Thanks