Start dates and calendar events

Darcy.L.2795

We have an educator who is setting start dates for making lecture content available to cut down on manual work (making things visible later on). However, this is now creating calendar events that are likely to confuse students. They may think the lecture is on that date, when it is just content being released. We would like to reserve calendar events to important things like assessment due dates. How can we control this, while still giving educators the ability to automate their work.