Hi,
I'm afraid it's not possible to do split gels in Capture.
I found a trick to disply split-gels, as well as inserting your own gels. Just create a custom Gobo, where you Split your Gels and that's it. in this example L200/L172 makes a nice cyclorama ;-)
All the best Marco
Yes I used ColorZilla at Lee's website, I know maybe not the best solution, but it works for me.