VSCode: set 'parameterHints' to show full function's signature just like when hovering the mouse over functions

[jmevel]

Hi all,

Currently in the process of learning Rust with VS Code and something is slowing me down when I write code.

When a parameter is waited for example when I write thread::spawn( a help popup is showing up, giving me a brief signature of the function as well as the description and code examples.
The problem here is the signature isn't fully shown: fn spawn(f: F) -> JoinHandle<T> (see bellow)

I believe this popup is the parameterHints popup because I can completely disable it in the settings "editor.parameterHints.enabled":false.

However I'd like to be able to set this to be just like when we hover the mouse over the function

Here I can see the full function's signature showing me the traits and lifetimes of the parameters.

Rust-analyzer's specific settings for this are in rust-analyzer.inlayHints.parameterHints but there's only the enable option available (not sure about the difference with the editor.parameterHints.enabled setting).

Is there a way to configure the behavior of the parameter hints's popup?
Should I create an issue instead of a discussion?

Thanks for your anszwers