I would like to see something like this too.
At the moment, I plan some days in advance using Klok, creating a ‘timetable’ of tasks.
But when I start recording, the ‘plan’ gets shifted to the left and the realtime recording is inserted on the right.
I then have to manually delete the plan, so it doesn’t figure into the timesheets.
It would be great to have the ability to plan out a week in a separate overlay/view, that never gets recorded onto.