In addition to navigation waypoints (WYPT), any waypoint can also be set as an Offset Aim Point (OAP) with an assigned Offset (O/S) location. This is a point created in relation to the OAP in range, bearing, and elevation. The Off Set (O/S) can then be selected as an alternate target point from the OAP reference.
DCS: F/A-18C Hornet: https://www.digitalcombatsimulator.com/en/shop/modules/hornet/