Hi, Francois
Firstly, thanks a lot for your kind help and all those detailed tutorials on the website. It really helped me a lot.
For the second suggestion, the picture I have here is the original figure I got when I imported my data into Brainstorm. So I didn't modify it yet.
And for the first one, I thought it might be the key point but I didn't find a really good solution to fix it yet. As it mentioned in the tutorials, it's really hard to indicate those points with a MRI view. So do you have any suggestions also for the coordinates of these anatomical points in MRI vies as the example gave below? https://neuroimage.usc.edu/brainstorm/CoordinateSystems#MRI_coordinates
In our MEG acquisition, we used CTF coordinate system, so the nasion and the LPA and RPA is marked as the green point like this page for the first section: Subject Coordinate System (SCS / CTF).
https://neuroimage.usc.edu/brainstorm/CoordinateSystems#MRI_coordinates
Thanks in advance!
Qianru