Controls at a glance

NullPerator uses the same actions everywhere: Shift, Option, Enter, Play, and four directions. The visualizer shows that shared control set; the table below maps it to your device.

EnterEdit and confirm

Common gestures

Move and edit

Move the cursorTap a direction

Move between viewsHold Shift, then press a direction

Edit or confirmTap or hold Enter as the page instructs

Play and select

Play the current contextTap Play

Begin a selectionHold Shift, then press Option

Mute the current trackHold Option, then press Shift

How this manual writes controls

The wording tells you whether to tap or hold a control:

Wording	What to do
Tap Enter	Press Enter and release it.
Hold Enter	Keep Enter down until the step tells you to release it.
Shift + Right	Hold Shift, tap Right, then release Shift.
Shift then Option	Press Shift first, keep it held, then press Option.

A plus sign means the controls are held together. Then means their order matters: press the first control, keep it held, and then press the second. This distinction is important because Shift then Option begins a selection, while Option then Shift toggles mute.

Find the controls on your device

The Web and iOS on-screen controls use the manual names directly. Keyboard bindings work on Web and with an iOS hardware keyboard.

Action	NullPerator hardware	Keyboard	iOS controller
Directions	D-pad	WASD or arrows	D-pad or left stick
Shift	START	X	Options/Share
Option	B	J	B1
Enter	A	K	B0
Play	SELECT	C	Menu/Start

On iOS, a connected game controller or hardware keyboard is optional; the touch controls provide every action. Controller face-button labels vary, so B0 and B1 describe their positions rather than printed labels. See Use NullPerator anywhere for files, audio, MIDI, and recording differences.

NullPerator hardware also has a Power action on FUNC. It has no Web or iOS mapping.

Older PicoTracker guides may use EDIT, ALT, or NAV. In this manual, use the NullPerator names and the table above.

Repeat

Hold a direction to repeat cursor movement in scrolling lists and tracker grids. Project, Device, and Instrument intentionally use a controlled repeat rate so one long press does not fly past an item.