First of all, great work! I think you are doing awesome work and I am very exited about Infinity!
I have encountered two issues with the checkboxes:
I cannot edit the attribute checbox e.g. change the name
In a subfolder I removed the default checkbox attribute and added a new one (so it has the name I want). But what happened then is that in the parent folder there were two checkboxes next to each other although only my new attribute showed up in the card. So I removed it and now there is only one checkbox but it doesn’t show up in the card.