After I worked out how the commands within the console needed to be phrased, I found this the best / easiest solution.
opening the console was my first task…
From a command prompt within the host machine
openhab-cli console
you’ll then get prompted for the password
habopen
It’s then a matter of correctly formatting the “smarthome:items addTag” command.
For example, why could I set the tags for Bath_Red but not for Mid_Red ???
The reason was that I wasn’t using the correct Item name.
I found the best way to locate the correct item name was to go as far as editing the item in PaperUI / Items and copying the text from the orange bar at the top…
Edit Bath_Red
The required command within the console is
smarthome:items addTag Bath_Red Lighting
Or what turned out to be for Mid_Red
smarthome:items addTag BackSuiteColour_Mid_Red Lighting
Now I can tag most items…
Good luck
Reference :- [Official Google Assistant Integration for openHAB](http://Official Google Assistant Integration for openHAB)