When the active dialog is a List Dialog (DISPLAY ARRAY, INPUT ARRAY), there is built-in functionality enabling the user to find particular rows, or move to rows quickly.
The problem is because there is no default visible action, end users and developers are often unaware that the functionality is there. Developers are also unaware of just what customisation they can make to this functionality so that it fits the rest of their application.
There are three such areas of functionality, find (fglfind), seek, and filter.
Read more at
https://4js.com/ask-reuben/ig-195/