Not sure how to get this setup. (or how messy/easy etc)
User on ethmain wants to get onto a new chain. (any)
if we support it as one of our main ones, we have a Foxnet gas transfer.
user can put any amount (max ? for each chain not to small $100 on that chain?)
transfer happens, user gets gas on that chain. (only support wallets that have access to all chains desired to do so.)