You will find this option under Manage Units.

PLEASE NOTE:  There is an additional 3% fee added to your dues for this feature to cover the fees associated with using Square.  The total you see when you go to pay does include that 3% fee.

For example:  regular season dues are:  $175 without champs, $200 with champs and $25 per show (up to 2 shows) for guests.  When you go to pay, you will see the fees are slightly higher than that.  That would be the additional 3% processing fee.

Please let us know if you have any questions.