This composition outputs a device element from a list, with a separate control panel window for moving forward and backward in the device list. It currently uses List HIDs, but can be swapped out with List MIDI Devices, List OSC Devices, etc.
2 comps joined, when 2 cubes layers are combined, then their combined anchor set to top left, and you top-align the combined layer to the window top for example, it works.
If you do the same with a cube + text layer, there is an offset from the window top.
Maybe it's me doing something wrong and obviously missing something, or the text layer height is bigger ? But with such small text I doubt it ?