COLOR
Tap lower-left corner of touch screen to change to next available color. A small block of new color will briefly appear.

DRAW
Press and drag a finger on the touch screen to draw. NOTE: Tapping will drop a pointer.

POINT
Tap finger on the touch screen. A pointer will appear and will be anchored where contact was made with the screen. NOTE: pressing a finger on the screen will cause a drawing line to begin.

UNDO/ERASE
Tap finger on upper-right corner of touch screen Most recently anchored marker will erase each time upper right corner is tapped (multiple undo).

CLEAR
Tap finger on lower-right corner of touch screen. All markers will be cleared from the screen. Active marker will remain.