FortiManager 5.4.1 - Switch Controller

I see that you can create VLANs for the Switch Controller in the "CLI-Only" settings.

However, I have failed to find where you could enable the VLANs on the Switch which is connected to the firewall via FortiLink.

Also, it does not show any of the already configured Switch VLANs which was already configured when the firewall was imported.

In the Device Manager -> Display Options, there is a checkbox for the Switch-Controller, but nothing is showing up when it´s enabled.