No sure if it will work but...Since pan/crop qorks on event level, maybe place the stills one after another on the timeline, render out as avi, then use pan crop on new avi de-selecting match output aspect ratio, panning from beginning to end of new avi....
Or, stitch them together in photo app and then pan...
Worth a try?
Dunno, just trying to apply Vegas thinking here...
Put your image no 1 on track one. Put your image 2 on track 2 etc. Use Pan/crop and keyframes. If your images are accurate you should be able to recreate the exact last frame of image 1 as the first frame of image 2. If they're not, or if the images don't overlap, you're in trouble anyway. (Even then you could experiment with cropping, thus creating a moving "seam" across the frame, or perhaps hide the seam behind a transition that moves in the same flow as the pan.)
Set smoothness to zero, or you will have trouble matching the pan speed.
When you've done your best with Pan/crop, you simply fade down track 1 to reveal track 2.
You could do it all on one track, like PDB suggests, but it will be tidier on separate tracks - easier to work with.
Tor
Just a tip from the wise, if you use PS to stitch them together you can end up with one very large file and that can really slow VV down. I'd be converting them all to PNG and keep them at no more res than you need.
"I have a set of digital still's that I need to stitch and create virtual 360 degree pan's and some zoomng."
Possibly better off doing some stitching in an app designed for that - they're cheap, and have some features to make it easier...
Personally I like TorS idea of limiting the picture size & using tracks, though I think I'd still combine the originals a few at a time, making sure there's overlap between the end of one panorama & the start of the next.
'Nother way might be to use something like Cool360 or similar, and take a screen movie of the pan, smoothed out later in Vegas. Or might open the pictures in something like CorelDraw!, line them up with overlap, easy to adjust height etc., create a rectangle, use it as a moving lens along a guide, export snapshots of selected rectangle, import these into Vegas timeline so Vegas can generate the tweener frames, possibly use supersampling or winmorph.
let us know how you wind up doing it and how well it worked.