This document is specific to Insight 9.0 and is maintained here for legacy purposes. Documentation for Insight 11 can be found here;
Yes. This feature is normally disabled to prevent an accidental change to the channel number. Even though the option is grayed out, it still displays the Teacher Channel configured for the workstation. You can change or add more channels by using a utility called EnableChannelSelect.exe that is available in the Utilities folder included with the licensed CD-ROM or download.
The trial version will only work with the "Demo" channel.