As do I. I just really hate doing chases in LSP. When dealing with arches that have 10+ segments, the additional timing marks makes the sequence unusable by the time you're done with it.
I got a chance to play with Vixen 3 this season and really like some of the features in it, especially chases. So, what I'd like to do is start with LSP, then layer on a Vixen 3 sequence where I'd only have the arches, and then finally Nutcracker. I'm assuming something like this doesn't already exist. I know light elf can append sequences together, but I want to layer them on top of each other. My only thought is somehow exporting the file into a format I could open with excel or notepad, and copy and past specific channels, but I'm not familiar enough with the different formats to know what would be the simplest. Or, if I'm going about it all wrong, please chime in.