- To select contiguous handles
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- To select noncontiguous handles
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- To unselect all handles
- SHIFT+Click in any non-active area on the interface.
- To unselect a handle
- SHIFT+Click a selected handle.
- To reverse the state of selected and unselected handles
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- To move handles
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- To remove handles
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- To stretch handles
- Select two or more handles.
- Check "Stretch".
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- Move the center of scope.
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- Drag the edge of scope.
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- (Option) Move the center with handles
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