Selecting (Tagging) Keys

You can select one or more keys on fcurves. Selected keys are highlighted in red and their exact coordinates are displayed on the X and Y axes of the graph.

 

In addition, keys using spline interpolation have slope handles to modifying the slope orientation and length (see Editing a Function Curve’s Slope for more information).

 

• When you’re selecting keys, they have priority over selected curves that are in the same location. However, if you are having trouble selecting a key because it is in the same location as a slope handle’s end point, make sure that Edit > Select with Priority to Tangents is not active.

• Use the View > Keys on Unselected Curves to show or hide keys on all unselected curves in the graph. If you choose this command, you can select keys without having to first select the fcurve. The default is to hide these keys, which prevents you from accidentally manipulating keys.

• Choose View > Keys Coordinates to show or hide the current time and value of a selected key.

To select keys and fcurves

Do one of the following:

• Choose Edit > Select Tool.

or

• Press Y.

or

• Click the Select icon in the fcurve editor’s toolbar.

With this tool, you can set different preferences for left and middle mouse button interaction in the Animation Editor Preferences.

- Use the left mouse button to select keys, curves, and slope handles.

- Use the middle mouse button to move whatever is selected (in both X and Y).

- The right mouse button is mapped to the fcurve context menu.

To select only keys

Select one or more fcurves then do one of the following:

• Choose Edit > Select Key Tool.

or

• Click the Select Key icon in the fcurve editor’s toolbar.

or

• Press T.

This tool cannot select keys on unselected curves.

To select and move keys

• Choose Edit > Select and Move Keys.

To select multiple keys

Make sure the appropriate select tool is active, then do any of the following:

• To select multiple keys, Shift+click the points you want to select or drag a red rectangle around unselected points.

 

When you select a curve and then drag a red rectangle, only the keys on the selected curve are selected.

or

• To select all the keys on all selected curves, choose Edit > Select All Keys from the fcurve editor command bar or press Ctrl+A.

or

• To add or remove a key from the current selection, Ctrl+click the key point.

Moving between Keys on an Fcurve

To move between keys on the selected fcurve

• Click the previous key (back arrow) or next key (forward arrow) icons on the command bar.

or

• Choose Edit > Select Previous Key or press the comma (,) key.

or

• Choose Edit > Select Next Key or press the period (.) key.

Deselecting Keys

To deselect keys

• To deselect keys, click an empty spot in the graph. This also deselects all the fcurves. When you do this, any keys that were selected before are “remembered” when you select the fcurve again.

or

• To deselect all keys on the currently selected curves, choose Edit > Deselect All Keys from the fcurve editor command bar or press Ctrl+Shift+A. This deletes the keys but keeps the fcurves selected.

or

• To deselect multiple keys while keeping the fcurve selected, middle-click+drag a rectangle around them.

 

If you’re using the Select tool, make sure that the Translate on MMB option in the Animation Editor Preferences property editor is off to be able to do this—otherwise you’ll move the selected keys!

Selecting Keys by Region

Using the region tool, you can select regions of points, making it easy to edit a large number of points at one time. You can edit a region by moving, stretching, or compressing all the keys within the region as a group.

To move or scale regions, see Moving Keys by Region and Scaling Regions Interactively.

To select a region of points

1. Select the fcurves you wish to modify.

2. Click the Region icon in the toolbar or press Q, then drag the mouse pointer horizontally across a section of the curves. This selects all points on the selected fcurves in the region.

Hold down the Alt key while dragging to snap the left and right edges of the region to keyframes. The selected area is highlighted in light gray.

 

If you want to extend or shrink the region you have selected, press Shift while you drag. You can also toggle curves and individual keys within the region by Ctrl+clicking them.

Inside the region, between the maximum and minimum values of the selected keys and the first and last keys of the selected fcurve, is a highlighted selection area. This region is bounded by four handles.

The region stays visible even if you change selection tools; however, it disappears when you click outside the region. As well, the last region you created for the fcurves is remembered the next time you select the same curves and activate the region tool.

 

To deselect a region of points

• Click anywhere outside the region.



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