Force update between dependencies from different .sbs sources?

Hi,

I've likely missed something in the documentation or settings but hopefully someone can provide a solution.

I have several graphs with dependencies between them. (Currently using only .sbs files to avoid .sbsar limitations.) If I have dependencies between graphs from different .sbs sources, they don't automatically update and propagate changes unless I reload the entire .sbs that has dependencies in it. Or restart substance designer completely.

How can I force an update without going through a complete reload or restart? 

Thanks