Moving An Actor Relative To Another Actor

(In the second picture, the orbs actually orbit the player)

I have a problem: I want the position of the orbs in the first picture to be able to smoothly slide into the starting position for the orbit in the second picture, but the only way I've achieved this results in the orbit being off. The reason being: I can set the orbs to slide to a point, but the player can move during this time, and that means that the orbs slide to the previously set point, but that is no longer the same point relative to the player.

So is it possible to move an actor relative to another actor? And if so, how?

_{Heh, two hundred twenty-second post.}

Use relative coordinates with this block: 

Could you elaborate a little bit? And wouldn't using that not change the result at all? The problem is that in the time the orbs get from Point A to Point B, Point B has become Point C, while the orbs are at Point B instead of Point C. It's difficult to explain, so I hope I'm not being unclear.

You are being totally clear. I perfectly understand you.
Wait a moment, I will post an example of my solution for you.

Arrow keys to move the character. Space key to move the orbs.
   
<a href="http://static.stencyl.com/games/40035-0.swf" target="_blank" class="new_win">http://static.stencyl.com/games/40035-0.swf</a>

The .stencyl file is attached to this post. You can download it.

That looks like it'll work. I'll have to do a bit of tweaking to fit it into my game, but otherwise it's good! Thanks!

Hypothetically, I should be able to do the reverse of this (slide the orbs back up) partway through sliding down and nothing will break, right?

Yes, hypothetically.