Moving gameobjects with easing

Im trying to make move commands similar to the one in the game 'Geometry Dash' When a move command is activated, a target object is moved a certain distance in the x and y axis within a specific time(seconds). Easing can also be applied to control the acceleration/deceleration of the object while it is moving.

Move commands need to be able to stack with each other

I have a MoveCommand class that calculates the current displacement every fixed update for each move command.

An example of the calculation i am currently using in the MoveCommand class:

 //The 'time' variable is between 0.0f to 1.0f

 //this is just an example to show different easings
 displacementX = time * moveDistancXe; //for linear easing
 displacementY = (time * time) * moveDistanceY; //for quadratic in easing

 targetObject.transform.position = new Vector3(displacementX, displacementY, 0.0f);

How do i go about taking all these MoveCommand(s) and applying the displacement to the target object, since there can be multiple MoveCommands affecting the same object? Or is there another much way to this?

tldr - I need a way to move objects when a command is given(i know how to do the easing part). I have no problems when working with a single command, but there can be multiple commands affecting the same object at once, resulting in each one of them overriding the other.