I will suggest that for data entry, check the ‘Manage Data’ section in the plugin settings, or you can refer to the documentation for details. Regarding the error ‘this table doesn’t have a unique index, editing is not possible. It typically happens when there is no unique identifier column in the table. Make sure your table has a column with a unique constraint and that should resolve the issue. I have faced this issue for my e-commerce based website exactly 2 months ago.