Great, thanks, now I understand. So those functions are working too.
One point I've noticed is that if I use "set figure reference to selection" to set references to be in italics or having an initial capital letter, and then try to change back to non-italic text or all lower-case letters, then the second set of changes don't get picked up. Another slightly strange example is that, if I define the figure reference format as "FIGURE ", and then afterwards redefine it as "figure ", what actually appears is "Figure ".
I guess it could be useful (e.g. for some journals) to be able to put figure and table references in bold text, in the same way that it's now possible to put them in italics (but with the same caveat that will mean sometimes switching bold formatting off, rather than switching it on).