How to import forward model from Brainstorm

Hello,
I want to simulate time courses from sources and having the possibilty to apply a LCMV beamforming filter to reconstruct the time courses.
To do that, I computed my forward model on Brainstorm.
Then, I simulated Ecog recordings from one source from my source space.

Now, I’d like to create the good structure to compute the filter with the function “make_lcmv”, knowing that I’have already imported the matlab file containing the leadfield.

Regards,
Théo

what you aim to do is hard. I know that @britta-wstnr did something similar with fieldtrip but I think it was the other way around. Using a forward from MNE in fieldtrip…

Honestly I think it would be much simpler to get a beamformer code in brainstorm. I know that John Mosher has one.

Alex