Sliding door, inner handle

[NickTara]

Hi, we have a 2019 Berlingo van. Does anyone know if it's possible to fit an inner handle/opening mechanism to the passenger sliding rear door?
 There's an easily removable blanking plate, obviously for a handle and mechanism, in to the door card and you can reach in and poke the external handles release catch and open it easily.
I've searched everywhere for one but nothing. 
Anybody know if any other model will fit or any other work around? Really would like to be able to exit the inside from either rear or side doors.
Thanks 
Nick

[brodfather11]

As far as I know the multispace version uses the same door. The handle from one of those should fit.