Thanks for the reply. The problem is actually uploading them, before even getting to the paper clip stage. It seems 40 is the limit for the drag and drop box. (that's a lot, I know...) In a previous TR I paperclipped 30 images, so I'm not sure about the 10 limit you mention. I don't just want to attach photos without being able to caption them.
Nor do I see an advanced mode when writing a TR.... I can see it on this page (I'm in advanced mode right now), but not when writing a TR. I think when writing a TR the default is advanced mode.