Multiple views of the same data

Hi,
I am analyzing high frequency oscillations from MEG data. I want to open two time series view of the same MEG file but band-passed them with different frequency filter. In that way, I can compare spike and high frequency oscillations (80-500 Hz) simultaneously on one screen. Could you tell me the way to realize this function?

It is possible to use a custom montage to filter some signals and not others.
It would take you some initial time to create your montage, but it could make you work easier if properly done.
https://neuroimage.usc.edu/brainstorm/Tutorials/MontageEditor#Custom_montage