The Options and Style tab have a number of control and design options for the Timer as a whole. You can adjust the options, set a variable, change the variation, choose a size, and change the color and style of the timer.
Select Option 3 under Size to make the timer bigger.
The Progress Bindings popup shows. Here you can adjust the amount of time to Count Down from or Count Up to by using the Use Value Option. Or you can display a value from a Variable.
Within the Use Value field, select the down triangle to adjust the timer to display 4 seconds.