Falcon66
Excuse me, but your Post is very confusing.
I don't have the Medical Certificate. (I cannot fly nowadays).
Then why are you bothered?
I've my ATPL Easa expired
An EASA Licence does not expire (it is valid for the holder's lifetime)
does anybody know if this training may be performed in a FNTP II based on my SEP Raiting
You have said that all your Ratings have expired.
Renewals of both the SEP Rating and the Instrument Rating (Single Pilot/Single Engine) would require assessment, followed by 'training as required' at an ATO, followed by passing Proficiency Checks (in aircraft) with an Examiner.
Note: It is not an EASA requirement to hold a valid medical when taking Proficiency Checks.