Exam C1000-026 topic 1 question 18 discussion

An administrator has been tasked to create a saved search that shows a list of multiple login failures for a single user by username. The administrator has done the following:
1. Selected Last Hour in the view option.
2. In the Add filter window, selected the search parameter Custom Rule [Indexed].
3. Selected Equals for Operator.
4. Selected Authentication for Rule Group.
What is the next step the administrator needs to perform for the Rule option?