splitter
If you need to scroll to view all data of a report,
you may not see column and row headings. A splitter is a horizontal or vertical
line that freezes the position of the cells above it or to the left. By placing
splitters to the right of the row headings and below the column headings, you
can see the headings while scrolling. In Application Studio you can insert
three horizontal and three vertical splitters in one report.