The tool options can be found at the bottom of the toolbar.
|Mask Mode||Enable to lock selected voxels, so they are not modified by any draw action.|
|Trace Stroke||Enable to fill in the complete path drawn freehand.|
|Tool Mirroring||Enable to duplicate any tool action across the selected axis.|
Mask mode enabled, only unselected voxels are colored gray by a pencil stroke:
Trace Stroke diabled:
Trace Stroke enabled:
Tool mirroring of a pencil stroke across the X-axis: