Underscore and ampersand
From CometWiki
Underscore and ampersand
The line continuation (_) and multiple statement on a line (&) characters can be combined to produce a connected and structured code block. For example, the following IF/THEN statement includes multiple actions to be taken if the condition is true:
IF OPTION$="QUIT" THEN_ CLOSE (1) &_ PRINT (0) "STOPPING PROGRAM NOW." &_ PRINT (0) "PRESS ENTER TO CONTINUE." &_ INPUT (0) "" &_ RUN "QMONITOR"
Note: This example could also be written with the IF/ENDIF structure. In that case, the line continuation and multiple statements characters would not be used. For more information, see the IF statement.