Find Pair Containing... - Ctrl-f
This selection opens a simple dialog allowing you to input a word or phrase to find. After entering the word/phrase, hitting Enter or clicking the OK button will take you to the next Q&A pair containing the phrase.
Find Next Pair Containing... - Ctrl-alt-q
This selection repeats a previously-entered search.
Open To Editor Search/Replace...
This selection opens the editor and its Find/Replace capability. This might be used to initiate an edit/fix session after noticing an anomaly in a file that you suspected might require multiple Q&A pairs to be fixed.