User-defined data lists are built in Shell Design based on the filters and output specified in an ad-hoc query selection. The selection, filters, and output are editable after the data list has been saved. However, when attempting to edit some data lists, users may receive the error: The operation has timed out.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.