You use markers to search for a string and to remember where the string
was found. You can use markers as an anchor for subsequent read/write
actions. You can use markers only with the General Text
format.
If you click a word in a General Text
section that is after a marker, the word will be located at run time
as a certain number of lines after the marker. You can also select a
marker from the From list in the SwipeDetails area, when in Line
mode.