set all object axes to world y=0

having a problem when exporting via riptide to .obj.
elements with axis above world y=0 are displaced upwards on the y-axis.
is there a way to set all the axes to world y=0 or am i doing something generally wrong?
i really don't understand why this is happening anyway.
any help apprechiated!

Select all your objects, then go into the coordinates tab of the Attributes Manager and set their Y position to 0. They will all get their local Y position reset to 0.
Careful, though, if an object is parented, it will be reset at 0 on its Y axis in relation to its parent, and not the world (so, if the parent has a Y = 10cm compared to the world, for example, the object will align to that parent and also be at Y = 10 cm compared to the world coordinates, because you aligned its axis to its parent, and not the world).

Another option, in case you want to reset only specific objects that are already parented, without affecting the parent: Xpresso.

Just use the one I'm providing, select all the cubes, then select the Xpresso tag and in the User Data box, drop all the cubes. Their global Y coordinates will be reset to 0.

fluff, thanks for the script it's _almost_ what i need! i would like to only move the axis/anchor point but keep the objects/parents/childs themselves in the same place where they were originally. would be a lifesaver to get a script like that. thanks in advance!

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