As the op is asking about Airbus why not put it in fix info as EEP and then use the abeam function so as to create ABEEP on the flight plan. Have been doing this for years as have pretty much all other Airbus pilots where I work, not once has it caused a problem with ADS. What you have in your FMS is up to you, ATC have no say in the matter as long as you follow your cleared route you can put whatever you want in the FMS. Never has it been queried by ATC although if they were confused they would just ask about it.