We are building multiple apps for multiple languages. Where can I find the definitive list of languages supported by AEMM? I currently need Bulgarian but will need others soon. Thanks,NP

I have 22 collections, all of which are assigned to the same layout. However, even after confirming that each collection is properly assigned (checking the collection properties tab), they do not show up in "Associated Collections" when inspecting the layout in the Layout Templates tab. It seems that they all lost their association with the layout. Only when I do the following steps does it show up: edit collection properties, change the layout applied to default, save, change the layout back to...

Is there a way to change which layout is used as the default? The idea of rebuilding my base layout/cards in the "default layout" seems daunting.