Arranging : Clip Loops and Groups : Clip Groups

Clip Groups
A clip group is a collection of any combination of audio and MIDI clips that looks and acts like a single clip. Clip groups are essentially containers holding one or more clips. Clip groups can be created on single or multiple adjacent audio, MIDI, and Instrument tracks. Clip groups let you “nest” multiple clips into “macro” clips for groove and tempo manipulation, editing, and arranging.
Clip groups can be placed on tracks alongside standard clips, and edited using many of the same editing techniques as regular clips. Certain edits to a clip group will apply to all clips contained by the clip group, such as Cut or Delete. Other edits only apply to the boundaries of the clip group and do not affect the underlining clips, such as Trim.
Each clip group is saved with the session as a Clip Group file (.rgrp). Clip group files can be exported from and imported into different Pro Tools sessions.
Clip groups are especially useful for:
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Grouping tick-based audio clips that have been separated into many small clips, such as with individual hits of a drum pattern. Many such small clips can easily be created with Beat Detective or the Separate Clip At Transients command, or imported as REX or ACID files.
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Grouping parts and sections of your session to facilitate composition and arranging. For example, grouping the clips of a brass section during the chorus to copy it to the next chorus.
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Clip groups are completely independent of and unique from Mix and Edit Groups.
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Clip groups are not supported on audio tracks set to Playlists view. Changing an audio track to Playlist View automatically ungroups any clip groups on the track.