Perspective logout / login visitor automatically

Good morning,
I have a project with an authentication system, the user at the end of the operation on the perspective client must press disconnect and at this moment a summary page must be displayed in the same project without requesting a reconection with an account visitor automatically, the connection is nominative for the operator

I used another project without authentication system to display another page when disconnected, but I cannot deconnect and navigate to the other project in the same tab, I have to set newTab to true (system.perspectisystemve.navigate) and launch the disconnection (system.perspective.logout()), is there a solution to disconnect and switch to the other project without authentication in the same tab ?