Modifying a 2D Sketch Dimension with Instant2D
You can use Instant2D to dynamically manipulate sketch dimensions in sketch mode. You can click a dimension and quickly edit its values without opening the Modify Dimension dialog box for resetting the geometry.
Instant2D functionality is similar to Instant3D, the only difference being Instant3D works outside sketch mode.
To switch Instant2D on or off, click Instant2D (Sketch toolbar).
To modify features using Instant2D: