Multiple applications sharing same monitor

Is it possible to arrange multiple applications on the same screen using weston kiosk shell or something similiar? (cpu board imx8) I can run multiple applications but the seem to spawn on random positions on the screen.

A more visual way to describe what i'm trying to achieve: I have a 1080p screen connected via HDMI to my toradex board, and i want to launch the “com.example.left” with a size of 960x1080 starting at x=0, y=0, and the “com.example.right” with a size of 960x1080 starting at x=960, y=0