One of my problems with cycling workout is doing too much too often. It’s great to now have a few dedicated plans to follow that tell me when to work hard and when to take a break. But the downside to these plans is being locked in, preventing you from other custom workout you might want to do. For example: I like to ride on recovery days. But I don’t have access to my recovery workout while locked in the plan. I think we should have the option to access other workouts without having to leave the plan.
That’s definitely fair, I’ll log this feedback and send it to the appropriate departments. 
If there are any changes we’ll keep everyone posted!
I also ride and race outside Zwift so being able to manually estimate and add a Ride and TSS (I don’t use out door power meter) would be ideal.
If I could plan in some B & C races into the plans that would really keep things interesting.