Some live data sources needs to display messages at the bottom of the Live Data under some conditions.
For instance, when displaying a Live Data with using the liveTable source and displaying the doc.title property with sortable=true or filterable=true, the message "(1) Some pages have a computed title. Filtering and sorting by title will not work as expected for these pages." must be displayed at the bottom of the table.
In addition, the cells triggering this error must be listed along the message and suffixed with the corresponding number.
Another known case is displaying warning if some listed pages are not viewable by the current user.