you can achieve this with a virtual station , assigned a cover path that points to a coverage answer group with the two stations in , you engineer the design in reverse though.
add cover answer group next (assign your stations in here)
add cover path next (point at your new answer group)
add station next (make this virtual and assign above cover path)
Callers ring the virtual station and the stations in the answer group ring.
APSS (SME)
ACSS (SME)
ACIS (UC)