What does displayMode do in Form locals?

APP_MODEL.attributes.locals.displayMode: default: normal form display. Not in a fixed position popup, just a normal ass form. floatingButton: fixed position floating button. when you click this button it will open the modal form. tab: fixed position tab. similar to floating button but it's a tab. modalForm: fixed position popup form. this is the form inside of a fixed position "popup" display.