I am trying to apply this pathway but after step 4, I do not have a single folder "blink" but each raw has a separate folder. Also, when I try to run them, the compute SSP option is not active.
Are there any updates since you posted this? I have 3 resting states for each subjects. I want to use one channel file per subject and use SSP.
I also checked this post.
Here you stated "The projectors need to be defined at the level of the channel file because they are used in the forward model. Which means that you cannot defined the projectors to apply independently to different sessions that are sharing the same channel file." Is this still the case?
Yes, and we do not recommend at all to share a channel file with multiple runs, especially in MEG.
I have 3 resting states for each subjects. I want to use one channel file per subject and use SSP.
Use the option "Default channel file: No, use one channel file per acquisition run".
Do not import the blinks. Use the Process2 tab, select all the recordings in FilesA (the files from which you want to compute the SSP projectors), and all the recordings in FilesB (the files to which you want to apply the projectors)