Constraints option not available

[Jock57]

Hi
I am new to DBeaver so excuse this if the answer is obvious. Having just installed the latest Community version (25.3.0) there is no option to change the Constraints under the Properties tab for the table. Basically I want to change the Primary Key which I believe is possible through this option (delete and recreate?). Also, I cannot add a table description, set a field to auto increment or even close the database (unless I exit DBeaver) so I don't know if these are limitations of the version as I would expect these to be standard features. I have tried doing it with a database I created using SQLite/Python and also using their default database with the same result. Any help would be much appreciated