How to get X and Y UID coordinates?

I have a sprite which act as spawn point.

I duplicated it that I have many instances of this object on the stage.

Now every X seconds I want an object that spawns at the the different positions of the spawn point instances.

How do a get the UID X and Y coordinate of my spawn point?

I know it should look something like this:

System / when spawn variable = 1 / create object at (SPAWN_POINT UID number and X coordinate, SPAWN_POINT UID number and Y coordinate)

but I have no idea what is the right expression...

Guys I am not mother tongue, i noticed that what I wrote up here is a bit messed up.

Anyway to make it simple:

this expression get the X coordinate of the IID of an object:

Sprite(1).X

what's the equivalent expression to get the X coordinate of the UID of an object?

here's the link where I found the IID expression, but I couldn't found the UID equivalent

scirra.com/manual/78/expressions

First, you should use the 'pick by UID' condition, then just use Sprite.X.

So,

Sprite -> Pick by UID

       -> Sprite.X

First, you should use the 'pick by UID' condition, then just use Sprite.X.

So,

Sprite -> Pick by UID

       -> Sprite.X

Just beat me to it. Exactly what "Joskin" said.

thank you so much!!!