Proceed through the mission until you leave the air vents, and a cutscene will begin. Hold Select to skip the cutscene. Stealth kill four enemies, and then disposed of the final enemy as desired. After defeating the last enemy, pause the game.
ZZ-CT is a 3x3 method proposed by Chris Tran. It is a variant of the ZZ Method with a unique 2 look LSLL, divided into TSLE and TTLL. TSLE inserts the last edge whilst orienting all corners.
After all workstations have reconciled the cash drawer by running the Z-Out Drawer Count Report, the Z-Out Store Close Report will report on all sales activity from all workstations and all cashiers for the period since the End of Day Procedure was last run (on the Point of Sale->End of Day Procedure menu selection).