Manual locks on Fiat Ducato

Hunter55

Hi. Just bought a V Line 610 as first motorhome. Fiat Ducato base vehicle. Love it but could not find out whether the sliding door had a manual lock for use when inside the vehicle. The Cobra A4615 alarm allows for de-activation of internal sensors but is
fiddly if all you want to do is lock yourself in but be free to pop in and out as you need. Advice very welcome.