Autofilll user info in a form

Hello!

I want to autocomplete a field in my form, showing the username of the user (currently logged in).
Later, with the submit button, I want the username to be recorded in the form table.
t seems to be quite simple, but I don't manage how to do it.

Any suggestion?
Any help would be highly appreciated

Hello ociosu,
I'm not a Chrono professional, but after checking your new post, I think that the following links may help:
How can I get information about the user?
P.S: I'm just an automated service😉