Triggers are based on either Session Events or Security Events, it is not possible to set them up by Session Group, but you could set up a trigger where if a machine with a specific IP address were to go offline by using the Session Event: Session.GuestNetworkAddress

Create a new session trigger - ConnectWise

This has been implemented as 'Require My Consent' here:
Enable a guest to require consent - ConnectWise
It enables a Guest to right click on the system tray icon to require consent, and in the case where a host is already connected, selecting the option will forcibly remove the Host from the sessions.

Hello,
I am curious how you currently use the Helper Window as a Windows Host, are you using it for Password Management integrations, or for another use case?

Using the advanced configuration editor, you can set the option to map automatically or not. If you deselect the option shown here, printing will still be available for the hosts (provided they have appropriate permissions), but will be able to toggle printing on or off in the Host client. Additionally, a host can choose to map all printers, or only their default printer. (Remote printing overview - ConnectWise)

File transfer menu - ConnectWise