Dear Francois,
Happy new year and my best wishes for 2019. I have been an active Brainstorm user for the past few years, and have used the data processed by Brainstorm to do connectivity analysis (specifically Granger Causality, phase locking and coherence) using my own scripts. As far as I know the connectivity section in Brainstorm is not optimal, and I have read several comments from you that it needs to be rewritten entirely.
If you haven't already started doing so, I would like to help. I have moderate experience scripting in Brainstorm and have developed some scripts to do time-varying Granger Causality based on adaptive filters, which I would like to add to the toolbox. I would prefer to work closely with you or another member of the team so that I'm sure I'm implementing something you can actually use, maybe you already have an idea of how you want to rewrite the section? Let me know if this is something you are interested in.
Best wishes,
Mansoureh