Plan training on the day of a restday

As it is we can plan rides in the future and see how the plan adapts. On a rest day this is only possible up front, not on the day itself.

On the rest days Join suggests you can go on an easy spin for not more than 90 minutes. It would be nice to be able to select a (recovery)workout and see if that would change the schedule for the rest of the week. Just in case we feel we 'must' get out and ride even if Join prescribes a rest day, but we still don't want to deviate from the overall plan to much.