From the main ACBLscore menu, select Data Base, then Club Setup. If there are no clubs entered you must first press "A" for Add or click the Add Button.
See Club Setup screen.
After you have entered and saved you club information, you must enter the Sessions for your club. While you are still in the Club Setup screen, simply press "F2 key" to toggle to the session mode. The "F2 key" toggles between Club and Session mode.
See Club Setup screen at the bottom of the page.
Note: Add all your sessions for your club before adding any games!