Because each Lock-off consists of a combination of specific room numbers, when viewing Lock-off Rooms on eRes, each lock-off combination will appear as a individual room.  

In the below example, there are four 2 Bedroom Suites showing, as each one is a combination of two specific rooms.

For example, one 2 Bedroom Suite will represent rooms 703 & 704, another will represent rooms 803 & 804, another represents rooms 903 & 904, and so on. Though the room numbers are not displayed on eRes, when a reservation is made for one of these lock-off's, eRes will automatically assign the rooms at the time of reservation, to prevent double booking of one or all of the rooms needed to make the lock-off.