選択

The active sequence strip is displayed with a light outline. The entire strip could be selected by clicking LMB in the middle of the strip.

Select Menu(選択メニュー)

The Select Menu helps you select strips in different ways.

Box Select B: Click and drag a rectangular lasso around a region of strips in your Sequence workspace. Selects strips all intersecting this rectangle.
Box Select (Include Handles) Ctrl-B: Works the same as Box Select but it selects only the strip's handles, if just one handle is selected moving the strip after selecting will change the strip's length. If both handles are selected the strip will move and behave the exact same as Box Select.

Side of Frame

Left/Right [/]: Select strips laying left or right to the current frame.
Current: Select strips intersecting with the current frame.

Handle

Operators to select strip handles. These operators are useful to change the timing of a cut by moving the handles after selecting them.

Both, Left, Right: Select the left, right, or both handles of selected strips.
Both/Left/Right Neighbor: Select the handle of the neighboring strip to the left, right, or on both sides of the selected strips.

チャンネル: Select strips in the same channel laying left or right to active strip.

Linked(リンク)

All Ctrl-L / Less Ctrl-NumpadMinus / More Ctrl-NumpadPlus: Selects strips, that are placed next to each other without any gaps.

Grouped Shift-G

Selects strips according to their relation with other strips.

Type(タイプ): Selects any strips of the same type within a category for example, if you have a Cross strip selected this will select all other effect strips.
Global Type: Selects any strips of the same type, e.g. Effect, Image, Movie, etc.
Effect Type: Selects all effect strips.
Data(データ): Selects strips that share the same data, for example, two image strips sharing the same image file.
Effect: Selects the strip that shares an effect strip.
Effect/Linked: Selects the effect strips, if any, linked to the currently selected strip.
Overlap: Selects any strips that occur on the same frame as the current.