Available for Planner.
The planner can decide the design settings of a question set by choosing "Design" at the bottom of the test page during setup.
The design settings are identical to the ones the author has available, as described in this article: Design settings in question sets
There are a couple of important differences, the first one being that by editing design settings in the test, the planner overrides the author's settings.
The other difference is that the options in the right panel will show whether the settings ar changed by the planner, along with an option to fetch the settings from the question set. This will restore the design to the Author's original settings.
Note: If the author makes any changes to the question set design after the question set is added to the test, this will not be automatically notified to the planner.