Send message don't sync

Hi !

Problem

All other folder of Gmail are synchronized without ‘send message’

Context

The Send Message on Mailspring is empty.
But on Gmail, imap have created a new folder [imap]/Sent (my email sent by mailspring are here)

In mailspring parameters, i can’t select this gmail folder [imap]/sent

What can i do ?
Thanks

Email Provider

Gmail

Setup

Windows 10
Mailspring 1.10.5