With the Drag tool you can move individual sub-objects around on the surface or grid. The options are:
Normal Move vertices by dragging them.
Note: When you use Drag at the Vertex sub-object level, moving the mouse cursor around automatically selects the vertex that will be moved when you drag the mouse.
Shift Move edges by dragging them.
Ctrl Move polygons by dragging them.
Shift+Ctrl Move edge loops by dragging them.
Shift+Ctrl+Alt Move elements by dragging them.
You can also use Drag to move sub-objects in screen space; that is, perpendicular to the current view direction. You do not need to change the active coordinate system to use this method.
Alt Drag vertices to move them in screen space.
Alt+Shift Drag edges to move them in screen space.
Alt+Ctrl Drag polygons to move them in screen space.
Important:Alt+drag does not work as expected in Maya mode. In Maya mode, Alt+drag orbits a viewport (Perspective views only).
Conform Brush
The Conform brushes let you mold a conform object into the shape of of a target object while moving the conform object's vertices toward the target. You can base the conform direction on the normals of the conforming vertices, or on a line between the target surface and the view plane. Possible modeling applications include painting a moustache object onto a character's face or a road onto a hilly terrain.
To see an example of using the basic Conform brush to mold a plane onto a character's face, play the following video:
When any Conform Brush tool is active, the Conform Options panel opens. Use its settings to control the tool behavior and brush properties.
In addition to the basic Conform Brush tool, four transform-based variants are available:
Move Conform Brush Moves vertices within the spherical brush volume along the target surface while conforming vertices to the target surface.
Rotate Conform Brush Rotates vertices within the spherical brush volume about the brush center while conforming vertices to the target surface.
Scale Conform Brush Scales vertices within the spherical brush volume about the brush center while conforming vertices to the target surface.
Relax Conform Brush Applies a relax effect to vertices within the spherical brush volume while conforming vertices to the target surface.