Use Honorbuddy's developer tools to generate the coordinates.
Click "Developer Tools" on Honorbuddy, then click "Generate Hotspot" at the bottom left.
If you can't find the Z coordinate, then you're probably looking at the wrong coordiantes.
There's "Zone" coordiantes and "World" coordiantes.
"Zone" coordinates are the only coordinates availible to the common user and are 2-dimensional, hence why there's no Z coordinate.
They only apply to the specific zone you're in (eg: Elwynn Forest) These are also the coordinates you see when you use in-game addons.
"World" coordinates are what the bot uses.
They're only obtainable via the bot, and are 3-dimensional.
World coordinates apply to the entire map you're on (eg: Eastern Kingdoms)