Hmm, sorry if my post sounded negative, I would use the program, mainly because making missions requires to alt-tab out a lot, and I normal do this while normal computery stuff (Talking on MSN, posting on forum etc), and when alt-tabed out, the gamma correction make windows hideiously bright, which gives me a headache in 10mins..
If your felling ambicious, how about a 3D view, like WRPTool, no textures. Could be very helpfull for making bases and stuff up (Lining fences up is horrible with the ingame editor, for example). Just a simple boxy model for each addon. Probobaly not very feasble, just a suggestion
Two ideas that would be very usefull, a grid-snap for placing objects (Changeable what size, so if your fence is 1.2 meters, you use 1.2 as grid snap).
And the rotation setting for... erm.. things (Everything, really), not make them 142.433232*, instead make it 142. Round them up/down
As for the external addons, maybe have a file listing of the display name, addon type (Person/Car/Tank/Plane/Object), the class name, and maybe a picture (Again, like WRPtool's object preview, or the editor picture you see in the in-game one).
You could also, maybe, in the edit unit screen, have a "Height" box, that automaticly does the
this setpos [getpos this select 0, getpos this select 1, height-number]
I've typed that so many times it's getting annoying..
Also, if you copy/paste a unit, keep the playable attributes
Little things like this would make it nicer to use that the in-game editor.. Really I'm just listing things I dont like about it, and hoping you can incoprate it into your program
But if you make this, I, and other people will use it
..:hmm: is that the time..
- Ben