The Repeat to Fill Selection command lets you automatically fill a selection with audio or MIDI clips or data without requiring that you manually duplicate the clips. To use
Repeat to Fill Selection,
Cut or
Copy a clip, then make a selection and use the command to fill the selection. When pasting audio clips, you are prompted to specify a crossfade to be used for the pasted clips.
If you fill an area that is an exact multiple of the copied clip size (for example, filling 16 bars with a 4-bar clip), the copied selection is pasted as many times as it takes to fill the selection. If you fill an area that is not an exact multiple of the copied clip size (for example, filling 15 seconds of a track with a 2-second clip of room noise), the remaining selection area is filled with an automatically trimmed version of the original selection.