How to mark an invoice as paid (if they don't pay online)

How to mark an invoice as paid (if they don't pay online)

Overview
You may collect a payment outside of the software.  An example is the member mails you a check.  You'll want to mark the invoice as paid and trigger all the on-payment actions.  The software will mark the invoice's status as Settled.  

Here is How
  1. Click Invoices
  2. Click the gear icon of the invoice
  3. Click Settle with Other Payment