Lightact has several easing functions. To very quickly clarify what easing functions do: they map an incoming float range (usually it’s from 0-1) to a different 0-1 range. Easing functions, along with their curves are shown below and the numbers in front of their names are how you call upon them.
Some of the nodes that use Easing functions are shown below. For example, if you input 0, you will be using an unaltered input as 0 signifies EaseNone function above. If you type in something within range 1-39 the input will be altered as per the corresponding function above.