libraries/ManiaLib/Gui/Component.php
function setPositionZ($posZ)
    {
        $oldZ = $this->posZ;
        $this->posZ = $posZ;
        $this->onMove($this->posX, $this->posY, $oldZ);
    }
function setPositionZ($posZ)
    {
        $oldZ = $this->posZ;
        $this->posZ = $posZ;
        $this->onMove($this->posX, $this->posY, $oldZ);
    }
Sets the Z position of the element
@param float