Extra cab entry step

Recently at the AGM at Newark I noticed a Mercedes based motorhome had extra steps fitted at the cab entry doors. Having searched both the internet and a Mercedes’ dealership regarding the supply of said items 
Does anyone know of a supplier ? I can find them for the Peugeot units but not Mercedes’.
Ps the reverse picture on the rear camera screen was eventually resolved by going through the pages of the menu by using the control buttons.

As an ASOC member, try asking the tech team, he may know the answer

https://www.grasshopperleisure.co.uk/fixed--electric-steps-50-c.asp

They have electric slide out steps and fitting kits for Sprinters.

We have an 12v Omnistep fitted to passenger cab door, Towtal Stoke supplied and fitted