This panel, which floats by default, opens when any Shift tool is active, and provides settings for modifying its effects.
Floating Shift Options panel
Vertices outside the Full Strength circle but within the Falloff circle (see following) move at a gradually slower rate.
To adjust Full Strength interactively, use Shift+drag.
To adjust Falloff interactively, use Ctrl+drag.
When on, the Shift tool effect is applied equally to both sides of an object across the mirror axis, as specified by the Mirror Axis setting (see following).
To adjust Strength % interactively, use Shift+Alt+drag.
When on, the Shift tool affects selected vertices only. Applies at the object level and all sub-object levels.
When off (the default), the Shift tool affects all vertices in the selected object.
When on, the Shift tool affects only vertices facing you.
When off (the default), the Shift tool affects all vertices in the selected object within the Falloff range, regardless of their visibility or facing.
Choose the axis across which the Shift tool is mirrored (see Mirror, preceding). This setting uses the World coordinate system.
Click these buttons to activate any combination of X, Y, and Z. When an axis button is on, the Shift tool is prevented from moving vertices on the object’s corresponding local axis.
Click these buttons to activate any combination of X, Y, and Z. When an axis button is on, the Shift tool is prevented from moving selected edges on the object’s corresponding local axis. Unselected edges move freely.
Applies at all sub-object levels.
For example, to allow Shift to cause vertical deformation only on the upper half of an object, first access the Edge sub-object level and select the upper half of the object, turn on Freeze Selected Edges X and Y, and activate the Shift tool. Then, at the object level or at any sub-object level, using Shift on the upper half of the object prevents horizontal deformation.