Enhancement on recurring events repeat option

Specifically the "Repeat every Day of the Week" option. I have several events that are bi-monthly, or quarterly. It would be great if the "day of the week" and month options could let you choose the months in the year to apply them.
Because I can see 2 scenarios... One is a payment that is due quarterly on the 1st of Jan, Apr, Jul, Oct. The other is a meeting that occurs bi-monthly on the 3rd Tuesday, for example.
Right now, I have to create 4 separate annual events for a quarterly event.