This module allows configuring the time to Keep history for opened files and clean some tracking data. Use the Clear History drop-down button to make Plasma™ Forget the last hour, Forget the last two hours, Forget a day, or Forget everything.

Below, you can configure the range of applications for memorizing opened documents. Use the For all applications item to store all data, the Do not remember item to switch off storing data, or Only for specific applications item for fine-grained selection (clicking on the application item toggles its current mode).

Check the Blacklist applications not on the list item to switch off tracking for all applications that are not on the list.