'p': toggle points. 
'w': toggle wireframe. 
'h'/'H': increase/decrease high frequency scaling factor. 
'l'/'L': increase/decrease low frequency scaling factor. 
'1'/'2': increase/decrease low frequency. 
'3'/'4': increase/decrease high frequency. 
'5'/'6': increase/decrease low frequency phase rate. 
'7'/'8': increase/decrease high frequency phase rate. 
't'/'T': increase/decrease mesh density.