UI Alignment ⌘
Aligning Elements on the Screen
You can align UI elements absolutely on the screen using left, right, top, and bottom custom properties. All four of them can take either a number or a percentage value - they can also use variables defined in VarService.
Note: Alignment properties can only be used on elements that are part of the UI layer. Be sure to use UIService.registerUiElement on the UI model before parsing it.