Add native search functionality into popup screen for deleting/adding actions/steps in processes

To improve the model building efficiency & experience, my customers would like Anaplan to add a native search functionality into the popup screen where we maintain (deleting/adding) actions/steps in processes.    Some of these customers' models include thousands of actions, and so it is not feasible for the model builders to scroll and search for them manually in such a big list. Since this Anaplan popup screen has no native search, the model builders have used the browser function CTRL+F to search out the content, but recently they have reported that this browser functionality has not worked consistently  so they have been struggling.