Update - I managed to joing the MCO Home MH-S314 switch to my SmartThings neywork after my 11-yr old son showed me a video on how to exclude a device and re-include it 
And then I proceeded as per above instructions from @hongtat - and guess what, I now see four separate switches for my Dining room - so well done to @hongtat , the solution does indeed work!! I just hope I don’t get the lights going on/off on their own as some users seem to have suffered.
The only thing is that I see them on the home screen like 4 different devices, unlike for example my Aotec Wallmote Quad device, where the switches appear to be bundled as buttons belonging to the same device. That said, I am extremely happy to have my MCO fully operational, because I can detach them from my Zipato, finally, and have them acting as repeaters for me all over the home.
In any case - thanks a million 
POST EDITED LATER…
As always, after the initial euphoria, reality smacks you in the face…
The MCO Home MH-S314 worked pretty well with the device handlers up here, but then I realised something that basically means I would not be able to use these switches. That’s the lag…
So basically, switching them on from the app is fine - there’s a lag of maybe half a second, it’s acceptable in my view… Switching from Alexa is almost the same, perhaps just a little longer… But switching the device (any of the four keys) on or off physically doesn’t register on the app for a whopping 20 to 30 seconds. That, then, is not really acceptable, of course. Any automations attached to the devices, e.g. if you have them set up as a two-way switch at the ends of a corridor - that won’t work well, because you’ll have to wait a minimum of 20 seconds for the light to go on.
This has happened to me on 2-gang switches, actually, and so there are MH-S312, as well as on MH-S314… All suffer from the same problem, and only when pressed physically. Has anyone else been through such a problem? Do I have anything set up wrong?