Yes, you just "drag and drop", "copy and paste". The ?? are Wildcards, in layman terms, they're there to work as values that the hacker doesn't know for certain that it will be the same value everytime you start the game. This is because:

a) It's a variable that changes as you play the game;
b) It's a variable that changes every time the game is updated;
c) It's a different variable everytime the function is run;
d) For some reason or another, the hacker decided that wildcards on that position would actually work better than a known value
e) None of the above options;

As you can see, it's very complicated to be certain why the wildcards have been put there, but they work on Cheat Engine, and have been working on it for a while now. On a side note, you can replace those for ** as well as it will work as a wildcard.

If you're interested in learning more about wildcards and making your own AoBs, we have other tutorials here on the forum that are great to initiate you on the Art of Hacking. If not, well, just be happy that they work!