Thanks for your response to this Francois.
I've been working on this for the past few days and I am currently facing some obstacles.
It looks like the process "Standardize>Uniform list of channels" cannot process links to raw files.
Is there no other way to do this other than manually changing the channels?
I have 7 people with left intact ears and 6 people with right intact ears. Each participant goes through 8 different conditions therefore if I want to flip the 6 (right intact ear) people to the left, I would have to do this 48 times.
The electrode positioning comes first before my analysis pipeline (e.g. bandpass filter and DC offset) therefore whatever process that would require must be able to process links to raw files (which the above process cannot handle).