Could we get a calendar view? Something like:
For irregular schedules, a calendar tha shows when each test will fire.
For regular schedules, each test shown on a repeating scale--you'd have to maybe have a variable scale (some tests that execute every so many seconds wouldn't be very useful combined with tests that exectue every so many hours).
It would give a quick visual representation of potential testing conflicts, plus it could give a quick visual idea to compare to other things you have scheduled (like backups, server reboots, etc. not in hostmonitor)