"You can search the case outline. For example, in the figure below, you see a search for 'hand,' showing the first hit found in the Case Outline: the word 'handbook.' Because the search algorithm here provides for a simple string search, it will find any phrase containing the same characters (e.g. a search for 'hand' will find 'handbook,' 'handle,' 'hand,' and 'Chandler.' Subsequent hits can be found by clicking again on the OK button. Summation indicates the line with the hit by outlining it in black."

From "The Litigator's Guide To Hands-On Use of Summation", by Jon B. Sigerman, Esq.

Right click anywhere in the case outline to bring up the Search for Phrase dialog.