Hallo, I have few questions while trying to get used to and use BaseX database in our solution. A) Could be empty collection in a database created? This query db:add("MyDBName","","/NewCollectionName") perforemed in GUI creates collection NewCollectionName but copies there also bunch of other things used as example… I tried also to ADD a xml file to NewCollection which works , new collection was created, but when I deleted that file, collection disappered also ! B) Is it possible to grant various users different access rights to different collections under one database ? Eg. granting access rights to groups of users and/or creating roles ? Regards and thanks for your good job, Jan Matuszek