Korganizer repeating event

using korganizer for the first time, i’m trying to create a weekly schedule that occurs every Sat and Wed. i find the “Recurrence” tab and when i select those days i require the schedule for, today’s day which is Thu is also selected and greyed out!

how to NOT include the creation day in a repeating event?

do you not have the “custom” in the pulldown as in kalendar?

seems i remember korgainizer working the same way.