It would be nice to be able to store the preferences in different files and to load them up by selecting from a drop down menu. The reason this would be handy is if you are working on different projects that require different effects, naming conventions, crops, frames, etc. be applied to the various screen captures. Once the settings are saved for a particular project you just need to load them backup to use them. It would also make sharing the setting easier.
Cheers,
Troy