The Scenario Mode feature is added to The PlanMinder in release 2.19.
Normally when you change things in The PlanMinder it is immediately saved and applied to the plan. With Scenario Mode you can create separate scenarios, where you can change, test and optimize plans without worrying about breaking something or making your co-workers confused. When you have found the changes that accomplishes what you want, you can apply them to the active plan with a click on a button.
The scenarios are saved, so you can create and explore more than one scenario, and you can show, discuss and cooperate with coworkers before applying or discarding them.