Glad I found this... was having the same issues with paragraph breaks!
I don't understand, though, why you have one text editor on the product pages in the shops, and another one here... why not use this one both places?
A couple of things I'd like to see in the shops product pages... the ability to have a list of all tags associated with my shop in a list, and be able to just check them to enable them... like the materials list. This would help those of us who aren't the greatest typists and keep us from having duplicate or NEAR-duplicate tags.
It would also be great to be able to select several items and edit their descriptive text all at once - especially if there were "shared text" and "unique text" sections so those one or two lines that are different would be simpler to add. I could go through and add all the shared text at once, then just fix up a couple of lines on each one individually.
I'm sure I'll have more suggestions later.