How do I access a different image point in an expression?

you can do stuff like "set position object (image point Y)". I .e. chose the image point.

But in expressions, you dont seem to be able to. e.g. you can say

Value -> 100 + object.imagePointX

but you cant say which image point it will get the X value from. I assume it is always using image point 0?

Is there any way to get the x and y of image point 1?

The reason is I want one image point in the center to allow easy centering, and I want another one which is more or less the top left to make object placement easier. I know I can calculate one from the other by adding/subtracting half the width, but I would prefer to be able to use the image points directly if possible?

I think it's in the manual but you can by index

Sprite.imagepointX(1)

Or by name

Sprite.imagepointX("myImagepoint")

Wow, that was easy, Rojo, you are the man!