Offer additional manual payment methods

Configure this feature in Settings → POM Tweaks → E-Commerce → Cart & checkout → Additional payment gateways. Each repeater row contains a method's activation, stable Gateway ID, title, description, instructions, order status and allowed roles.

See Offer additional manual payment methods for setup, classic and block checkout behavior, and verification.

Keep existing Gateway IDs unchanged, including custom_gateway_1 through custom_gateway_5. Orders and other payment rules refer to these IDs. Disable a row to stop new payments while retaining its instructions for existing orders.