I followed the instructions to copy / paste the link ( all events ) into the Gcal add URL box. got a message - loading cal failed. when I copied / pasted the link from the INBOX RHS sidebar - the operation completed. I noticed that the URL in the INFO tab did not have a token - whereas the INBOX one did.

using this method I assume I will only get the INBOX stuff loaded into Gcal. How do I get ALL lists / events ??? was it a temporary Gcal glitch ( I tried it several times over a few hours )