The column ruler command displays a ruler on the screen that you can use to determine column positions. RSD documentation calls the column ruler the horizontal ruler . There are two ruler commands, R and HR .
R creates a temporary ruler and HR creates a permanent, or held ruler.
A temporary ruler disappears as soon as you scroll the screen forward or backward. A held ruler remains until it is deleted with HRD or RES . The R command can be used to place a temporary ruler anywhere in the report display. Type R on the command line and then position the cursor on the desired line before pressing Enter . R n is another way to control the position of a ruler.