If you create hierarchical keywords in Lightroom then you can use the Keyword List panel on the right hand side.
Yes it is possible and fairly easily done.
I have created a tree structure of my keywords. please see pic. 1 below:
But now I have to click a checkbox positioned to the left of the keyword to assign the keyword to a picture (due to not all keywords are shown as buttons on the top side of pic).
I want to organize all my keyword structure as keyword buttons divided into Categories - it is faster to click a button rather than a tiny checkbox.
I've created a picture of what I want to get - please see pic. 2 below:
Is it possible to:
1) show all keywords as buttons on a single screen
2) organize buttons into Categories as on pic. 2.
The Keyword List panel is as close as you can come.
The Keywording Panel offers Keyword Sets of 9 keywords that you can pre-specify, but that's not really what you are asking for either.
So, maybe I can make an addon to Lighroom in case it is not difficult, are there any docs / dev. platforms for developers?
The functionality is very simple, just need to create a UI and integrate it into Lightroom.
You can create a keyword set and then use the paint tool to apply the entire keyword set.