How do I move funds across federations?

Moving funds from one federation to another simply involves paying yourself from one federation wallet to another federation wallet in the same way you would pay anyone else. The simplest way to do this is via Lightning since you cannot send a chat payment to yourself.

From the Home screen of the federation you'd like to receive to, tap Receive on your Bitcoin balance and enter the amount you'd like to receive denominated in sats or fiat. 

To transfer your entire balance, you should instead first navigate to the federation you'd like to send from > tap Send on your Bitcoin balance > select Send offline > enter your exact current balance in sats. 

The actual maximum amount you can send when accounting for fees will be shown in red. This is the amount you should enter when creating the Lightning invoice from the federation wallet you want to receive to.

Next, you can add a note to the transaction if you'd like. Once you're done, tap Request X SATS. You will then see a Lightning invoice QR code. Tap Copy and then tap the X at the top right.

Next, tap the Scan tab at the bottom right and Paste the Lightning invoice address. Tap Continue. On the next screen, select the federation wallet you'd like to pay from using the drop-down menu at the top. Once you've reviewed the details of the transaction, tap Send.

Note that if the payment does fail due to insufficient funds, the resulting error shows the true maximum number of sats you can send net of fees. Repeat the process using this number to ensure the payment is successful and zero-out your balance in the wallet you're moving funds from.