Hide a select project from Forecast?

Not certain how to set it up in OF2 or even OF3.

It was very easy in 2Do - a list/ project could be toggled to “do not display” mode. Any way to exclude a project from Forecast? An example would be tasks that are rather timed reminders than true to-dos - take vitamins at a certain time, etc. I really only need a reminder, not a full power of OF to manage these.

I used Due app before, but would prefer to keep everything under one roof/ app.