for iOS 9.1 software

AssistiveTouch menu button, then choose your gesture from Custom.
When the blue circle representing your touch appears, drag it over a
Home screen icon and release.
If you record a sequence of taps or drags, they’re all played back at the
same time. For example, using one finger or a stylus to record four
separate, sequential taps at four locations on the screen creates a
simultaneous four-finger tap.
Exit a menu without performing a gesture. Tap anywhere outside the
menu. To return to the previous menu, tap the arrow in the middle of the
menu.
Move the menu button. Drag it anywhere along the edge of the screen.
Adjust your accessory tracking speed. Go to Settings > General >
Accessibility > AssistiveTouch > Touch speed.
Hide the menu button (with an accessory attached). Go to Settings >
General > Accessibility > AssistiveTouch > Always Show Menu.
Touch Accommodations
If you have trouble using the touchscreen, use Touch Accommodations
to change how the screen responds to touches.
Choose how long you must touch the screen before a touch is
recognized. Go to Settings > General > Accessibility > Touch