I think I may have a workflow, related to what Rick described
above, but possibly a little easier (or repeatable).
1) Record your project in a standard screen size, either
800x600 or 1024x768.
2) Save two copies of your project. On one, append
"-original" to the name. On the other, append "-zoom".
3) On the "-zoom" version of the project, delete any slides
you do not intend to zoom in on.
4) Resize the "-zoom" version and crop to 640x480 or smaller
(but make sure you keep the dimensions proportional), cutting out
everything except the zoomed area. To keep the mouse roughly
proportionately sized between zoomed and unzoomed slides, I
recommend doubling the mouse size in any zoomed slide.
5) Save another version of the "-original" file, this time
appending the name with "-small". Resize the entire project, but
this time choose the Rescale option instead of Crop.
6) Import the slides you originally deleted from "-zoom" back
into the project from the "-small" file. You may need to resize
your captions. You may also need to decide between having the zoom
appear with a fade-in, or if you want to show the zoom happening
(which will mean choosing the unzoomed version of the first slide
in the zoom sequence and adding a zoom object to it). Your call.
7) I recommend using a fade transition for unzoomimg slides.
If you have multiple zooms, that's fine, but you have to
decide up front what your zoom resolution will be and stick with
that. I think this is a lot easier than managing multiple
animations in a project.
Thoughts?
Jason
By the way, if anyone wants to see a sample of what this
might look like, I put one up for review:
http://www.youtube.com/watch?v=nu3-b8_4gno
I didn't spend a lot of time on this, so it could be more
polished, but you can at least get the idea of what the output
might look like on YouTube.