This video presentation explains how to setup nominated Smartphone Argo App or Credential (smart-card or fob) users to set the specified device into "Passage Mode" (sometimes referred to as Office function). It also then explains how you can enable the ISEO Smart device into "Passage Mode" using your Smartphone or User card, fob or NFC Phone and the reverse to de-activate "Passage Mode". This feature is particularly useful if you need to keep a door unlocked for a period of time due to passage of users not normally authorized access but maybe whilst a room or area is occupied and/or the visitor is escorted. The "Passage Mode" function can then be de-activated and the door secured when no longer required. Importantly, the device does not use battery power whilst set in passage mode so it can remain in this state for extended periods of time if required.