You can search with a question mark (?). If an input field is a string type and is associated with the VDN database item, the user can enter 21?0, and CMS will report data for all VDNs that start with 21, end with 0, and have any single character appearing between the 21 and the 0, for example 2100, 2110, 2120, 2130, and so on.