Basically, the button window starts at 1100 pixels. And this was precisely calibrated so that on a 1920x1080 resolution, the buttons would be where they need to be, while the main window starts from the left edge, or so I thought.
There are no 1100 pixels. The interface is assembled in 1024x768 and proportionally stretched by the game to higher resolutions. Above 1024x768, it goes beyond the screen.
Maybe there's a way to make the buttons stick to the right edge... I'll just set the button window to start not at 1100 pixels, but at 0.
EPA_HIGH_END - alignment to the right/bottom edge
EPA_LOW_END - alignment to the left/top edge
EPA_MARGIN - stretch to the entire screen
ERA_CENTER - position in the center
can be used in conjunction with the (x/y) values in the Position section; it will not be taken into account until the value in the Second section = false.