How to fan 2 movers

I am running ETC_EosFamily_v3.0.2.6 on a PC and can not find how to pan in fan mode a selection of only 2 movers. Selecting 2 movers, then pan, the first  stays stationary, and the second one moves. None of the fan options cause them to both to pan inward to center stage.

All manual and on line references I can find refer to an odd number of movers, where they can move about a central mover.

Any advice much appreciated !

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