[Define tween globally and attach it to elements later?]

Hi there!

I just started using GreenSock and it works really well generally.
Now I have come to a point where I need to use a certain type of Tween (certain properties and values) on some elements that I need to figure out in different event listeners at runtime. Currently I define the same tween in different places, but I feel I am repeating myself. Is there a way to define a tween globally first and then later "attach" it to elements and have it run? Sometimes this Tween will have to run normally and sometimes in reverse.

Or am I approaching this the wrong way altogether?

Thanks!