Hi MV,
Yes, you got that right; the 63 had some unsorted priorities. I left them in as I moved on with 64 to fix those. Sorry if there was any confusion based on my doing.
I'm glad you brought that theme up, as I know the (mostly) where the limits are, but there is, more often than not, a way to make a workaround of some kind that might come close.
The head or the "tool" needs the freedom of 6 axes alone, which is not doable with normal input devices directly and, in that way, hard to direct since I do not have a "Space-Mouse". So the Target-Tag use (as your headline suggested) is a good help.
My best wishes for all the projects you manage at the moment.