After generating a data table via a search (either a standard search, data type report, or an advanced search), you'll usually filter and modify that data set until you get the structure and parameters that you want. XNAT lets you save those search parameters so that at any point in the future, you can dynamically reload that data table using freshly populated data. This is called a stored search.
The search is now available under Stored Searches in top navigation.
If you started from a Project data table, this stored search can also be added as a new tab on the Project report page.
A stored search can be defined in XML, and uploaded via the XML Uploader. Go to Upload > XML in the top navigation to start. Once a stored search has been uploaded, an XNAT Admin may need to modify the stored search permissions to allow access for specific users.
XNAT Site Administrators can create site-wide stored searches, otherwise known as bundles. See Sharing Stored Searches in the Administrator documentation for more details.