You are referring to auto vs. manual. I apologize, but I do not know what it is that you are saying. I tried to add the VPN connection with Meraki as hub.
On the main VPN screen under the hub selection I see: "There are no other hubs in the VPN."
I add the tunnel info to the third-party router and I get: "Settings could not be saved. Please verify that your connection is working and try again."
Maybe this has nothing to do with the hub, but something is wrong with what I am doing. The sad part is that nothing gets saved.
This is not my first VPN. I have done dozens of these with Cisco and SonicWall. I currently have a dozen active VPNs with the customer that I am seeking to convert to Meraki. The Z3 will represent a spoke at the location where it is currently needed. I will not invest money in replacing any routers without success on this router.