You need to be owner or have "Send payments" permission.
On the Payments page, select the payments to send.
Click Pay Selected.
In the Sending payments window, payments will be grouped by token.
Choose which wallet to pay from and click Send.
If your Service Balance doesn't cover the fee, you'll see how much is needed and a Top up button.
Where you can pay from
On the send screen you choose the source for each token group:
an external wallet (you'll sign in your wallet extension),
an internal wallet, or
Service balance (USDT and USDC only) — the payment is sent from a system wallet and charged to your Service Balance; you can also split the batch across several wallets.
If approval rules apply, the payment goes for approval instead of being sent right away.