Dear Thomas,
Many thanks for your message.
As you mentioned, we have other priorities, so we cannot add this functionality to the Brainstorm at this time. Please consider that adding a new function needs several steps like necessity, validating the algorithm and simulations.
As you know, you can write your own process function based the available guidelines
in our tutorial.
https://neuroimage.usc.edu/brainstorm/Tutorials/Scripting
- Hossein