
| Action | Windows and Linux | Mac OS X | Results | 
|---|---|---|---|
| Adjust brush size | B + drag or middle mouse button (MMB)-drag left/right | B + drag or MMB-drag left/right | The tool cursor resizes larger and smaller as you drag. | 
| Adjust brush size from 0 | B + MMB-drag left/right or Ctrl + MMB-drag left/right | B + MMB-drag left/right or Ctrl + MMB-drag left/right | The tool cursor resizes larger and smaller as you drag. | 
| Adjust brush strength | M + drag or MMB-drag up/down | M + drag or MMB-drag up/down | The brush strength indicator lengthens or shortens as you drag. | 
| Adjust brush strength from 0 | M + MMB-drag up/down or Ctrl + MMB-drag up/down | M + MMB-drag up/down or Ctrl + MMB-drag up/down | The brush strength indicator lengthens or shortens as you drag. | 
| Invert frozen | Ctrl + Shift + I | Ctrl + Shift + I | Reverses the frozen and unfrozen CVs and hairs. Frozen areas display in blue. | 
| Decrease hair density | Ctrl | Ctrl | The Density brush's Paint Operation switches from increasing to decreasing hair density. | 
| Remove a placed hair | Ctrl | Ctrl | The Place brush removes the hairs it added. | 
| Reduce hair length | Ctrl | Ctrl | The Length brush decreases the hair length by the set Increment value. | 
| Smooth hair while lengthening | Shift | Shift | The Length brush's Operation switches from Scale to Smooth. | 
| Reduce hair width | Ctrl | Ctrl | The width brush decreases the hair width by the set Increment value. | 
| Unfreeze frozen hairs | Ctrl | Ctrl | When using the Freeze brush, the strokes unfreeze previously frozen hair CVs. | 
| Change how the Freeze brush applies freezing | Shift | Shift | Switches between freezing and smoothing operations when using the Freeze brush. | 
| Deselect hairs | Ctrl | Ctrl | Switches from selecting hairs to deselecting them when using the Select brush. | 
| Switch the tool's Selection Mode | N | N | If the current tool has a Select Mode setting, the tool toggles between Floating and Locked Selection Mode. | 
| Switch the tool's Brush Mode | N | N | If the current tool has a Brush Mode setting, the tool toggles between Global and Local Brush Mode. | 
| Switch the Density brush's Paint Operation | N | N | Switches between the Density brush's Paint Operation settings, such as Set and Smooth. | 
| Switch to a different Falloff Type | N | N | Toggles between the Screen and Volume Falloff Type when using the Comb and Grab brushes. | 
| Switch to a different Cut mode | N | N | Toggles between the Screen and Volume Cut mode when using the Cut brush. | 
| Change the way hairs get parted | N | N | Toggles between the Along Stroke and Away from Center modes when using the Part brush. | 
| Change how the Select brush selects hairs | N | N | Switches between the Screen, Volume and Surface selection types when using the Select brush. | 
| Switch to Density brush | Ctrl + 1 | Ctrl + 1 | Activates the Density brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Comb brush | Ctrl + 2 | Ctrl + 2 | Activates the Comb brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Grab brush | Ctrl + 3 | Ctrl + 3 | Activates the Grab brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Twist brush | Ctrl + 5 | Ctrl + 5 | Activates the Twist brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Smooth brush | Ctrl + 6 | Ctrl + 6 | Activates the Smooth brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Noise brush | Ctrl + 7 | Ctrl + 7 | Activates the Noise brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Clump brush | Ctrl + 8 | Ctrl + 8 | Activates the Clump brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Part brush | Ctrl + 9 | Ctrl + 9 | Activates the Part brush. (Another interactive grooming tool must already be selected.) | 
| Switch to Freeze brush | Ctrl + 0 | Ctrl + 0 | Activates the Freeze brush. (Another interactive grooming tool must already be selected.) | 
