ZSU controller voiced concern regarding new RNAV arrival procedures claiming lack of training and display depicted routes/fixes.

Narrative

New RNAV arrival procedures started at the San Juan CERAP (ZSU). Controllers at ZSU are not familiar with these procedures. For us; it is the first time we have seen them. There was no training for this; only a briefing. They just started them and already management has issued 2 bulletins changing them. The main concern is that the RNAV routes are depicted only for the Center Controllers on their scopes. Nothing is depicted on the scopes for Approach Controllers. That means that for approach; the controller does not know which aircraft are flying the RNAV procedures. The Approach Controller flight progress strips do not specify if the aircraft are flying it or not. By Standard Procedures; for example; aircraft are cleared on routes that take them to SJU VOR. By RNAVs they fly to other fixes which are different from the routes the Approach Controller expect them. It is difficult to ask every aircraft if they have been assigned the RNAV or not. No changes have been done to our Standard Procedures; meaning that each aircraft needs to be taken out of the Procedure or the Center will have to coordinate each one individually. This increases our chances of operational deviations or errors.