WP App Studio allows creating a Twitter's Bootstrap modals with single function tag in view layouts. You can use modals to collect data from users in various types of views without cluttering your view layout HTML with special markup.
WP App Studio allows creating and displaying of user defined WordPress custom fields in your view, form, widget and relationship layouts. Custom fields a quick way to allow users to extend your app's data model.
User-like entities are used to map WordPress users to WPAS entity records. One user-like entity record is related to at most one user. You can configure a user-like entity by creating a user list attribute.