Many companies use filter functions in order to always be able to see a dynamic time window for reports. As an example, the management would like to see the last three months for the financial report. If a rigid time filter was entered, the period would not be based on the current date, so the time filter would have to be adjusted for each search. To avoid this effort it is possible to filter dynamic time windows in projectfacts. If the filter is entered as desired, this filter can be saved as bookmark or standard setting. This function can be used for all filterable lists. How this dynamic filter works is explained in this article.