About editing channel files

hello Bst Team:
I have a question about editing channel files.I used the 65-dot coordinates of the 10-10 system. When I finished editing the channel information in the matlab environment, I saved it as a. Mat file. But when I use import channel files, brainstorm doesn't recognize this file5 6

If you want to use the menu "Import channel file" to load a Brainstorm channel file, the name of the file must follow the naming conventions for the files in the database. You file should be called "channel_1010.mat" for instance.

A simpler option to edit database structures: right-click on the channel file > File > Export to Matlab, modify the structure, then right-click again on the file > File > Import from Matlab.
https://neuroimage.usc.edu/brainstorm/Tutorials/Scripting#File_structures

Hello Francios:
Now,I met a problem now, this picture is imagine task EEG two kinds of sports, left to imagine his left hand, right hand movement for their imagination of 15002 dipole time series, now I want to know how to calculate two kinds of sports to imagine task dipole time sequence difference, and displayed on the chart。
thank you, looking forward to your reply。1

To compute differences between two experiment conditions at the source level, refer to the introduction tutorials:
https://neuroimage.usc.edu/brainstorm/Tutorials/Statistics
https://neuroimage.usc.edu/brainstorm/Tutorials/Workflows#Constrained_cortical_sources

In the future, please post new questions as new topics.
Thanks