For more information, see the following topics:With the Link Timeline and Edit Selection option disabled, selections can be made in the Timeline that are distinct and separate from Edit selections.With the Timeline and Edit selections linked, any Edit selections that are made are mirrored in the Timeline, and any Timeline selection is mirrored as an Edit selection across all tracks.Whether the Timeline and Edit selections are linked or not, the range indicated by the Timeline Selection Markers always determines the range for playback and recording (except when in Dynamic Transport mode, see Dynamic Transport Mode).With Pro Tools HD, when the Scrolling option is set to Center Playhead, it determines where playback begins (see Playing Timeline and Edit Selections with the Playhead).1 If you want to constrain the selection to the current Grid value, set the Edit mode to Grid.
The Timeline selection is indicated in the Main Timebase ruler by the blue Timeline Selection Markers (or if a track is record-enabled, the Timeline Selection Markers are red). The start, end, and length for the Timeline selection is displayed in the corresponding fields in the Transport window.
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To select all tracks, including Conductor tracks, press Alt (Windows) or Option (Mac) while dragging in a Timebase ruler with the Selector tool.To set the Timeline selection by dragging the Timeline Selection Markers:1 If you want to constrain movement to the current Grid value, set the Edit mode to Grid.2 With the Time Grabber, drag the first Timeline Selection Marker (down arrow) to set the start point.3 Drag the other Timeline Selection Marker (up arrow) to set the end point.
To set the Timeline selection by typing into the Transport window:1 If necessary, resize the Transport window to Expanded view so the start and end times are displayed (View > Transport > Expanded).
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Press Alt+Forward Slash (/) (Windows) or Option+Forward Slash (/) (Mac) on the numeric keypad to select the start field in the Transport window.3 Type in the new start location and press Forward Slash (/) to enter the value and automatically move to the end field.4 Type in the new end location and press Enter to accept the value.
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Shortcuts for entering start and end values in the Transport window are listed in Numeric Entry Shortcuts for Selection Indicators.