Just wondering whether we can be an editorial member of more than one Journal???

I don't see why not, as long as it didn't cause you a conflict of interest, though it might be sensible to check the policies of the journals in question to be sure.

Google "list of scam journals"...

Doesn't seem to be a problem because lots of respected academics are on the editorial board of several journals.

Thanks for your input, guys - appreciate it!