[feature]Whether add the feature that clean all screen output

I often search keywords(Alt+F) in screen output, however, the last screen output always interfere with current search result.
So i need to clean the last useless output.

The issue concerns Alt+F search in terminal screen output; begin by reproducing a search after earlier output and trace the terminal screen and search entry points. Done means there is a way to clear previous output so it no longer interferes with current search results, with behavior verified in the relevant terminal workflow.

Written by the indexing model from the issue text.