Variable confusion

It’s there. When you hit the tag icon, you’ll see a listing with the local tags (provided by the triggercard), and below that the tags of all the devices, just enter the device name in the search bar, or scroll down

Btw you’ll also find Logic- & Better logic vars, Homeyscript tags

That explains this also

When you want to create / use “real” Logics variables (instead of homeyscript tags), you can do that also in HS