The Property OFI shortcut button which displays on the property listing image within Mobile Agent has been removed from iOS11 due to incompatibility issues. If you have updated your iPad to iOS11 you will no longer see this button.
You can still start an Open For Inspection by following these steps:
To start an OFI and gather attendee data. Select the property via either the OFI tab or the Listings tab from within Mobile Agent.
Select the OFI date from the list of OFI’s scheduled for that property. This is located underneath the property image.
Once you have selected the correct OFI you can enter buyers data.