Currently, users must manually select dates in both the filter portlet and the Gantt date picker when they wish to restrict the data source to specific dates. This process is tedious and requires the portlet to load twice.

We propose a feature that allows synchronization between date pickers in the filter portlet and the Gantt. There should be a setting in the listening portlet that enables users to link its date pickers to one or two date pickers in the filter portlet. When the user filters on specific dates, the linked date pickers should automatically update, reducing manual steps and loading time.