well, as subject says, how to load a sequence of images into the traceSOP, I know it's some kind of F$… expression, but my knowledge in that field is ops:
and also you can give some good advice on how to gain basic knowledge about expressions…

Try this site for information on expressions http//oldsite.vislab.usyd.edu.au/users/manuals/index.html

Phil

Simplest thing is to switch to COP mode and use a file COP to bring in the sequence.

great-it works.
thankz.