My little Merge2 macroscript looks like this:
macroscript Merge2 category:"BlurScripts"
(
mfile = getMAXOpenFileName()
mergeMAXFile(mfile) #prompt #select #noRedraw
m = filenameFromPath (mfile)
selectionSets [m] = selection
)
I stick it in the UIMacroscripts directory and then in Customize > Customize User Interface > Menus I add it to the File menu. I've also added to the main menu. I've got XRef tools, menus for working with Reactor, Crowd and Stitch. It's all customizeable through simple macroscripts or hardwired commands.
ob1: Zoom, Arc Rotate and Pan are hardcoded to keys + middle mouse button.
Zoom - Cnt+Alt+MMbutton
Arc Rotate - Alt+MMbutton
Pan - MMbutton
FastPan - Cntl+ MMbutton