Particle overlay composer guide

Keys

The tool listens for a few keys. They do nothing while a slider or a text box has focus; click an empty part of the page first.

KeyWhat it does
SpacePauses the scene, or plays it again. The same as Pause and Play.
RStarts the clock again and scatters every layer afresh. The same as Restart.
SSaves the project file. The same as Save project; it does not save a PNG.
EnterIn the preset name box, saves the preset.
Ctrl K, or Cmd K on a MacOpens the list of all lab tools, as it does anywhere in the lab.