Hi.
You can use array Get Next to loop thru each object and do with it what you have to do.
Then if you want to clear the list, you can clear the list by resizing to 0.
OR
use 'Array Get' and get index 0, then do what you have to do, then do Array Delete At.
But before the Array get you would need to check the Length of the array to know if it has something in it.
Then loop back (and check Length of the array again).