How to clear a planner

Using XE7 and Planner version 3.3.4.0
When for a given day I configure some parameters like Display and Active intervals, colors and background colors for some rows, how can I initialise, clear or revert a Planner to an initial state.
Is there some function to do so.

There is not a specific method for this. You could destroy and recreate the Planner at runtime for this.