How do I create a new address in Electrum? In Electrum, there is no "New Address" button to be found. I tried under the tab Addresses, but nothing there. If I go to Console and try create(), then it returns:

Traceback (most recent call last): NameError: name 'create' is not defined


(despite create being listed under help)

If I click new under Receive then it says No more addresses in your wallet. At this point I'm not sure what else I can try...
With Electrum 2.x, a wallet can contain either keys you've imported from elsewhere, or keys which are generated (deterministically) by Electrum. You cannot store both types of keys in a single Electrum 2.x wallet.

Since your wallet is of the former type, Electrum will refuse to generate any new keys for your wallet. I suspect the reason for this is to make it as clear as possible what you need to back up: with your type of wallet, you are responsible for backing up all of your individual keys. With a deterministic wallet, you need only write down and store your one recovery seed.

You have two options:


Create a new wallet (File -> New/Restore), choosing a new "Standard wallet" when prompted. Be sure to write down your recovery seed and keep it in a safe location!
Create additional keys via some other means, and import them into Electrum (Wallet -> Private keys -> Import), and handle your own backups.


I'd choose option 1 if I were you....