Mouse: Create, edit the simulation
Space + Mouse: Pan through the world
Space + Mouse Wheel: Zoom in/out
P or Play/Edit button: Play/Edit the current simulation
O or Output button: Open the output panel
D or Copy button: Duplicate the selection
?Particle:
Shift: Toggle fixed/unfixed mode (while in sim enables grid drag)
Ctrl/Delete + Mouse: Deletes the particle
?Toylet ? Ok, to use the toylet, follow this instructions:
Paste the code bit you want to paste at the simulation at the outPut code box (click ?output? or press ?O? at your keyboard), then click ?Use as toylet?. Then choose the place where you want to paste the piece of model and then click! (if you hold ?C? you can multi-paste pieces)