Any way to populate the Tree input field dynamically based on the other input selected by user?

[ishaarora3]

I have a requirement to show the virtual machine files to the user in form of tree structure.

I could see we have a way to use External values in form of actions to populate the tree but I have question on the below,

1. What Entity Type do we map if the input field is tree type? Is there a mapping list that I can use?

2. The external value had no option to use the other input field value selected, in this case I need to have the VM to show the files to user.

[ishaarora3]

Can anyone help with this or provide an example where Tree input is used. I could not find any examples online. Not sure if anyone is using this input type.