Stringify not seeing Dome Water Shut off valve things in SmartThings Hub

I successfully connected my Dome shut off valve to my Samsung SmartThings hub v2 and can control it from the SmartThings interface without any problem.
From Stringify, I am able to connect to SmartThings hub , but it retrieves all objects except that valve.

I followed this procedure to add the valve into SmartThings hub since it was not built in by default.

Why the Dome valve is not showing up in Stringify ?
Any ideas anyone !?!

I contacted Stringify Support and here is their answer:
“Unfortunately we don’t support the Dome Valve. Others have figured out that they can control it via Stringify by adding a virtual switch then using a SmartApp to make the virtual switch on/off control the dome valve open/close.”

What I’m trying to do, is to use my Insteon water leak detector from Stringify to close the Dome Valve if water detected.

Have you tried using the standard Z-Wave Water Value DTH and assign it to your device after pairing it

Not sure what you’re talking about ?!?
I’m new to this, can you be more explicit…

See the instructions here on how to install a custom device handler.

http://www.rboyapps.com/installdh.htm

Look at steps 3 and then 9 to 14.

When it comes to selecting the Device type select Z-Wave Water Valve from the list.

I was already set to “Z-Wave Water Valve”…
So I set it up to “Dome Water Shut-Off” since it was in the list. I can now see it in Stringify when I do Re-connect which I couldn’t before, but then when I authorize it and I click on “See Details”, the valve is not listed in the supported devices. Consequently it is not added as a thing in Stringify

.