As with the head command "e", access the data line immediately prior to the new data
line insertion point. To do this, on the edit screen, enter the line command “e” (enter as many as necessary) at the appropriate points and press ENTER. This will
present an established B30 screen. Enter “Y” in fill-in 4 and press ENTER to bring up a blank B30 screen. Complete the fill-in
prompts as appropriate.
Fill-in 4 on the new B30 screen should be left blank unless the just entered line
of data will represent the last line in the B30 chart (then enter “N”) or an additional data line is to be inserted immediately after the just entered
data line (then enter “Y”).
When all appropriate fill-ins have been completed, press ENTER. Depending on the number
of times line command “e” was entered on the edit screen and how fill-in 4 was answered, this will either present
another blank screen (“Y” was entered in fill-in 4) or present an established B30 screen (“NULL” was answered in fill-in 4 and additional insertions are necessary) which will require
a new response to fill-in 4 to advance to a blank B30 screen, or end the B30 session
and return the typist to the edit screen (“N” or “NULL” was answered in fill-in 4 and no additional insertions are necessary).