When you have a payment period for the p-events, you can hide the period when the date is expired.
For example: when you have an early and late fee, you can hide the early fee when the date is expired.
To show the events which falls in the current time click on: 1.reg.items> 2. item settings> 3. extra settings.
In the picture above you will find the option: Show only the events which the current time falls within the period specified for the event.
Click on the checkbox and save the settings.