Human UI - Value Listener Issues

Can anyone explain how to use value listeners to change the values on a grasshopper script through the Human UI window alone? For example, how do you change a number slider on grasshopper by referencing it onto human ui and changing the value on human ui. I’m fine with getting my elements into Human ui, i just can’t figure out how to change the grasshopper values with human ui.

If there’s a decent tutorial about human ui in general or value listeners specifically, I’d very much appreciate if you could refer me to them.

Thank you :slight_smile:

try this video:
or the example files on food4rhino

Can anyone tell me why the Value Listener is not working with the UI Slide?