Since these commands can be used on the same columns in several consecutive lines, it is possible to copy, move or delete `rectangles' of characters in a workfile with a single command. If, for example, you have the workfile:
000100 Here is 000200 a block 000300 of text 000400 =======you can use the command
ccopy (f l) 1 7 column 9 line 400
000100 Here is 000200 a block 000300 of text 000400 ======= Here is 000500 a block 000600 of text 000700 =======The meaning of the command is: From the first to the last line of the workfile, copy the columns 1 to 7 to the columns 9 and following of the lines 400 and following.
You can find details on the three commands at their descriptions in section The Commands in Detail.