Shadowfist/pokemon-online — comment on commit 61f7fe3615cae2f55fb95bb59e241bf6115c9475
File: bin/db/pokes/5G_special_moves.txt line 4
By coyotte508:

Since they are gotten together, you need to add them in event_combinations_gen5.txt (at the root directory) and put them there: http://pokemon-online.eu/forums/showthread.php?2705-Event-moves-combination .

Then you run EventCombinations.exe (src/EventCombinations) in order to add the combination to the bin/db/event_combinatiosn file, so in the teambuilder you can select them both at the same time.

Since they are pre evo moves, you also need to run MoveMachine, and press Ctrl + Save. (You could have run movemachine to add the moves in the first place easily). That way the evolutions' pre evo moves are updated and Aromatherapy/Synthesis will be available for serperior.