Day-At-A-Glance Calendar - for a boss

We have a number of PAs who access their bosses calendars all of the time, and their own rarely. They all think it would be a really useful feature to have the Day-At-A-Glance calendar show their bosses calendar, not theirs.

We can do this with Notes 6 mail template users (as a widget displaying a view), but not Notes 8 mail template.

Has anyone else succeeded in doing this? or at least know how?