More powerful display and space selectors

[rainzm]

The initial idea was that I wanted to set a unique bar height for each display.

By reading the documentation, I found that the height belongs to bar properties which is global. I can reach my goal using the methods indicated in this. However, this approach will divide my configuration into two parts, where in actuality, these two configurations only differ in the attribute of "height."

So I wonder if there is a easy way to distinguish bar properties or just height for each display?

Finally, I want to express my gratitude for your creating such a wonderful bar.