You can move sliders using the keyboard. This is useful if you want to make more discrete changes in constant values or if you find the mouse difficult to use for this purpose.
At any time there will be one slider that is active. This slider can be identified by the colored rails 
which will contrast with the clear rails 
on the other sliders. The keyboard operates on the active slider.
You can change the active slider by clicking on it, or by using the Tab key or Shift+Tab key combination. When you use the Tab key the order in which activation changes depends on the order in which the sketch was built and may not be visually obvious.
The right arrow key àà will increase the value of the constant controlled by the active slider. The left arrow key ßß will decrease the value of that constant.
