add format bug will be fixed in the next release. As for the arrow order, that's decided by library software that i dont have any control over. I could hack it to reverse, but I'm used to the current ordering
1) Move the folder location via the config dialog and calibre should do the rest. But remember this is a beta.
2) it should provided fcntl based file locking works on NAS shares
3) Not yet. Adding support for configurable generic html converters is on my TODO list, but at the moment i'm focussing on html2epub