I don't see any need for the editor to be separate from mirc... sounds like more annoyance when trying to edit stuff.
As far as tabbed view... I don't see a need for that, personally... however I *really* don't like the "More" item at the bottom of the script list menu (View menu, if I remember correctly) for 2 reasons... 1) it adds an extra step to find something I'm trying to open. 2) it sorts the names which puts them out of order from the way I add them which makes me have to look more to find them... if anything, that should be optional.
