Be able to put races into the calender/plan

When picking a plan I would like to put my C,B&A races in and let the plan work around that.
If a race is every tuesday /WTRL on Zwift) or if my A race is on a thursday I would like the long stuff always be on the weekend, or on the day I choose.
Like some older posts I have found, I would like to block a day a week or put in time off. Like family weekend off