[4.0 REQ] Groups of tabs

[Wanderer]

It would be very helpful to be able to load and save groups of tabs in separate files. That way, one could open several tabs, then save them in a group (.rdg?) file which would actually contain the names of all opened .rdt files. Next time, he would just open the .rdg file and all tabs would be restored (all databases would be opened). Inside a group file, there could also be an option to indicate the last active file (tab) when the group was saved.