Assuming you are in fact referring to sitemaps and not MainUI then the answer is no. Sitemaps are basic and simple by design.
And it’s not clear what you are asking for. You want a way to define a label for an Item in metadata instead of using the Item’s label field or the sitemap’s label field? I don’t see how that makes anything any easier. It just moves the problem to a different and less obvious place.
If this is what you are really looking for then don’t define the label on the sitemap and define the label on the Item.
Definitely referring to sitemaps. I had figured this wasn’t possible. No biggy, I was just being lazy and didn’t want to edit a sitemap from my phone.
I migrated all of my items/things to OH3 a while back and simplified my sitemap afterwards.
Now I’m messing with Mycroft and the OH skill. Since it is utilizing the REST API, it mostly still works. It requires items be tagged and also that the label property be the exact name of the item. I.E. “Power” must now become “Living room TV”. This messes with my sitemap Groups so some nested items need new labels, making my sitemap a tad messier again.
My hope was that I could define a Meta property for that one item in the group that needs a new label and have the sitemap look at that property when assigning a label; If label_X exists in Item Meta properties, use label_X, otherwise default label behaviour.
Editing a sitemap on my phone/tablet is not fun. Scrolling doesn’t seem to work. Editing Meta properties is really easy. That’s the only inspiration behind asking!