RGBlink UMS4 pro User Manual page 20

3.5.2 Control Button
:play the last one
:pause the audio and pause button will turn into
play button.
:play the next one
You can also start and stop the program via space key.
:click to stop currently playing layer.It will return play
normally when clicking again
:click to lock all operations of the layer.It will return
editing status when clicking again.
:click to hid the preview image.
:click to mute the media.It will return normally when
clicking again.
UMS4 pro User Manual 20