The .STEPOVER command executes one or more statements in the current program starting at the current position, stops, and returns control to the interactive mode. Unlike .STEP, if .STEPOVER executes a statement that calls another routine, the called routine runs until it ends before control returns to interactive mode. That is, a statement calling another routine is treated as a single statement.
The optional argument n indicates the number of statements to execute. If n is omitted, a single statement (or called routine) is executed.
Note: .STEPOVER is an executive command. Executive commands can only be used at the IDL command prompt, not in programs.
.STEPOVER [n] or .SO [n]