Canon EOS Rebel T4i 18-135mm IS STM Lens Kit Instruction Manual page 54

d Touch Screen Operations
Drag
Menu screen (Sample display)
Scale display (Sample display)
Operations possible by dragging your finger on the screen
Selecting a menu tab or item after pressing the <M> button
Setting a scale control
Setting functions during Live View shooting
Setting functions during movie shooting
Playback operations (swipe)
3 Silencing the Beep during Touch Operations
54
Slide your finger while touching the
LCD monitor.
If [z1: Beep] is set to [Touch to
beep will not sound during touch
operations.
], the