and the size they export to makes them completely unreadable.
If you mean the default font size, it really is too small, bump it to 11 or so before exporting.
because in its current state, UML is completely unusable if you need to export the documents… I’ve tried resizing the files and the screen resolution prior to export… to no avail…
Have you tried “printing” the diagrams to PDFs using something like PrimoPDF? I find this a heck of a lot esaier to work with than a gianormous image I have to go install Photoshop just to read well.
and sequence diagrams are missing, when are they going to be added?
4.1
why do they all save into one file? this is annoying, I’d rather be able to see multiple files to copy between projects if needed.
We considered this, but uncompressed those source files are enormous (xml files, tons of whitespace), so for now this is the solution we thought was a good middle ground, if our users would much rather work with individual files we can certainly look into adding that enhancement.