I realized this morning while watering plants that if I use the dimensional thingie to explain why my science fictional dragons can shapeshift to human form despite mass differences (and can also ‘store’ clothing for that form), then that opens up another possibility — Anne McCaffrey’s dragons in Pern used a dimensional thing to explain their teleportation ability.
So I could have shapeshifting teleporting dragons in my story, and that makes me just ridiculously happy. I think I need to counterbalance a little all the serious literary stuff in my brain left over from grad school and look for what brings me joy in writing. Shapeshifting teleporting dragons are total joy.