The Search List command appears on most right-click menus when you click on a list. This allows you to search the list for a string or regular expression.
Once the input focus is on a list, you can press F4 to search for the next occurrence.
String to find in the list
Add the string pattern to search for.
Start at beginning
If enabled, then the search starts at the first item in the list. If not enabled, then the search starts just after the selected item in the list.
Turn this on to perform a case-sensitive search.
Use Regular Expressions
Turn this on to interpret the search string as a regular expression. See: Regular Expressions.