Add to courses an "Instructor Capacity" to limit the number of instructors
Courses currently have a "Student Capacity" to limit student enrollment but do not have an "Instructor Capacity" to limit instructor enrollment. This can create situations where too many instructors sign up, which in turn can create problems wherein too many instructors show up and have nothing to do, or can create create additional work for course leaders to reach out to instructors and ask them to cancel. Either way, it creates an awkward situation in an organization where we want to gratefully encourage as much volunteering as we can.
Note that it is possible set limits on the number of instructors for course field trips, but not for the number of instructors for the course itself.
For example, this happened recently for the Seattle Snowshoe "Backcountry Snowshoeing Skills Instructor Clinic" held on January 30, 2016. This was a small clinic intended to have a max of 8 students and 2 instructors. The instructor team was fully specified as of October, 2015, but other well-intentioned instructors signed up so that at one point we had 5 instructors signed up to teach 2 students. This led to lots of churn among the instructors as they noticed the high instructor-to-student ratio and started cancelling. We eventually ended up with the desired instructor count of 2, but with a completely different set of instructors than had been set in October. Situations like this could be prevented if it were possible to simply set a max Instructor Capacity.
The instructor slots for a course are designed to be a roll up of all instructors helping out with a course that has multiple field trips and lectures. I think it would be best to use our new single seminar and clinic functionality for activities like the backcountry snowshoeing skills instructor clinic. Listing as a clinic means you can designate the title to be whatever you want, have earned badges AND most importantly for you be able to designate how many instructor slots you want and participant slots.
See example here: https://www.mountaineers.org/about/branches-committees/everett-branch/committees/everett-climbing/course-templates/intermediate-leading-on-rock-everett/activities/introductory-lecture-and-practical-mountaineers-seattle-program-center
Once there is an activity template you can simply schedule like you would a snowshoe or hike.