Hide an upcoming season from the parent portal

We use a season each year to organize our competitive dances. While planning is in progress, we don't want these "classes" (aka dances) shown to the students until the we have finalized everything. While in the planning stages, dances may shift from one student to another and student/parents get very upset if a dance gets removed. Until the season is finalized and choreography is scheduled, we DO NOT want these classes in the students upcoming classes section of the portal, but we DO want the season/classes in the DSP class list for us to actively plan. It would be great if the season could have a flag "hide in parent portal" or even if the class could have a flag "hide in parent portal".