I was thinking that another way it could work is to select all the image sequences in the project panel and run a script that adds all the selected sequences to the render queue. In the render queue the files have the attribute to render and replace the image sequence. Seems like it may require less scripting? I’m not sure though.
I am using tif sequences mostly. I find that if I need to share a project file with someone, several passes of tif sequences are rather large. To make the project smaller I convert them to a video file that I can compress a bit. It’s not ideal, but it cuts down on the space substantially.
Thanks again.
Kevin