Programming Tip: HIDING LINES WHILE EDITING ** Especially for those Who work in companies where Implementation is carried out Mostly.

When you are working with source members that have many source lines, it is useful to exclude certain lines from the displayed member, allowing you to see lines from different areas of the source on the screen at the same time. Place X (Exclude) on any line you want to exclude from the display. This doesn't delete the line from the source member; it simply causes the excluded line(s) to be temporarily removed from the SEU display.
You can also use the X command in block format (XX). The example below shows how to exclude lines 3 through 6 (I entered a blank after the XX command to make it more readable):

*************** Beginning of data **************************
0001.00 111111111111111
0002.00 222222222222222
XX 3.00 333333333333333
0004.00 444444444444444
0005.00 555555555555555
XX 6.00 666666666666666
0007.00 777777777777777
****************** End of data *****************************

The result below shows that lines 3 through 6 have been hidden from view:

*************** Beginning of data **************************
0001.00 111111111111111
0002.00 222222222222222
- - - - ------------- 4 data records excluded ----------------------
0007.00 777777777777777
****************** End of data *****************************

To redisplay the lines, press F5 (Refresh) key, or use the SF or SL commands. SF (Show first) command shows the first excluded line, and SL (Show last) shows the last excluded line. You can also use SFn or SLn to show the first n lines or the last n lines of the excluded group of lines. The example below shows how to use the SF2 command to show the first two excluded lines:

*************** Beginning of data **************************
0001.00 111111111111111
0002.00 222222222222222
SF2 - - ------------- 4 data records excluded ----------------------
0007.00 777777777777777
****************** End of data *****************************

Notice below that the display shows the first two excluded lines and the text has changed to "2 data records excluded":

*************** Beginning of data **************************
0001.00 111111111111111
0002.00 222222222222222
0003.00 333333333333333
0004.00 444444444444444
- - - - ------------- 2 data records excluded ----------------------
0007.00 777777777777777
****************** End of data *****************************