If you have long rows or columns of data that extend beyond the viewable area of the sheet, you can freeze some rows or columns, which allows you to see the frozen columns or rows as you scroll through the rest of the data.
To freeze both horizontally and vertically, select the cell that is below the row and to the right of the column that you want to freeze.
To deactivate, choose View - Freeze Rows and Columns again.
If the area defined is to be scrollable, apply the View - Split Window command.
If you want to print a certain row on all pages of a document, choose Format - Print ranges - Edit.