Hi all. Perhaps this question has already been posted (I did not find any solution within the 46 pages of topics).I'd like to add 3 listboxes in Ticket creation form (I've created my own form) - This step is ok, my listboxes are placed as I want... But the problem is a bit more... touchy.Data in the listboxes should be linked to external data (for the 2nd and the 3rd only) AND (and that's the reason I ask you) the listbox 2 is dependant from the choice of the first, and the 3rd is dependant of the choice of the 2nd (cascading choice to create an easy way to sort types and subtypes for example).For an illustration of my request : Listbox 1 : First Category will contain those items : "IT","Facilities","security"...etc (retrieved from database for example)Listbox 2 : Must be filled from a database, following the item selected in Listbox 1 For example : Selected item in Listbox 1 is "IT". So items in listbox 2 must be filled from mysql table in the same database of OsTicket (for example) and must be : "Workstation", "Server","Software","Database","RMS"... etcListbox 3 : Filled from a database and following the selected item in listbox 2. For example : Item selected in Listbox 2 is "Workstation", so items in Listbox 3 must be filled as seen above with items like "Screen","Keyboard","Mouse","OS problem","hardware problem"... etcIs it possible to link listbox to external data (or a table located in the same database as OsTicket) and make a listbox refreshing following the item selected in the last listbox ? (cascading choices)As we have many categories, we would like to split choices to prevent from having only one listbox with too many items (users will be bored and will never choose the good category).Anyone can help me ?Many thanks lot for your help :)