Pass selected from dropdown to a Multiline Text Box

I have a drop down box and a button next to it.
After the user has selected an option from the dropdown box and then clicks the button, I would like the selected value to be passed to the next available line in a multiline input

I cant figure out how to do this with workflows.

you can save the dropdown value as a state (set state)

and then set that state as the initial content on your multi-line input

Thank you for that, but I dont see where to set a state

I’ve figured out how to set the State but I cant figure out how to pass that to the next line (below the current last one) in the multiline text box

It is the “Initial Content” section of your Multi-Input element:

Here are the bubble docs