Hello

Describe the bug
When using the process, Sources > Compute sources: BEst, we can open the panel to enter the MEM option using the Edit button. After entering all the parameters, and closing it by clicking "ok". If we try to reopen the panel using again the Edit button, an error appears.

To Reproduce
Steps to reproduce the behavior:

1. Go to Sources > Compute sources: BEst
2. Click on Edit and enter some parameters
3. Click on Ok.
4. Click again on Edit and see the error

Screenshot

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Expected behavior
When clicking again on Edit, the previously entered parameter should appear in the edit panel.

Additional context
The error also appears for NIRS

@ftadel, I am tagging you in case you have any idea on how to solve this bug :)

Is your feature request related to a problem? Please describe.
Displaying "expert" options in normal mode might be intimidating. Even though these options are disabled, their presence can be unnecessary and potentially confusing.

Describe the solution you'd like
It would be better to hide them and only show them when expert mode is activated.

Cross-posting Brainstorm issue for better visibility:
brainstorm-tools/brainstorm3#389