[Paulo Presotto]

I just start learning AE , and am now trying a little more fancy effects . I am trying to make this floating effect works on a layer imported from photoshop . Then I found this post saying

position:

sp=2;
amp=150;
gravity = 50;
x = Math.sin(time*sp)*amp;
y= time*time*gravity;
value + [x,y];

rotation:

sp=2;
amp=5;
x = Math.sin(time*sp)*amp;
value – x;

But I have no idea where to go to change these parameters , since when I open the position and rotation menu under the layer , there’s none of this options . Sorry if this sounds a little stupid , but where are these commands ?