HotKey Overall Thanks for all of you that answered here, I collect this for beginners like me :P
Single Key Caps Lock =Specific Element Erase Shift+alt+Click =Specific Element Choice Insert/` =Replace Mode TAB =Circle/Square brush Space =Pause Q =Quit Z =Zoom S =Save as stamps L =Load last used stamp K =Browse stamps C =Circle view mode 1~9,0 =Set view mode directly P =Screen shot F =Step. Useful for life observation G =Grid mode H =Hide the Powder toy 44.7 and pressure and temperature display D =Debug information, life generation and number of particles R =Reset life generation I =Invert pressure and velocity grid T =Vine mode, PLNT grow up on WOOD V =Video mode, record screenshot of every single frame until you stop it (only in Beta versions) W =Toggle Gravity modes (SHIFT + W when STK2 is out) R =Reset Generation in Debug = =Reset pressure