Add LV to existing 320 Rating UK EASA

[squawkident.]

Hello,

I presently hold a UK EASA ATPL with an expired A320 rating (expired by 6 months)

My new employer requires me to have LV annotated in my rating page before I start employment; my question is what I have to do to acquire the additional LV?

I am LVO rated using an overseas license (ICAO) and understand the CAA will accept this to prove I have undergone the training.

Does anybody know if I can add the LC to the expired rating or will I have to undertake a new LPC/OPC?

Thank you

SIDent.