If you do not want to enable/disable the cache at the server level. Then, as an alternative you can also enable the cache on virtual database level using the VQL command ALTER DATABASE and then do 'File>Refresh' in the VDP Adminintration Tool for the changes to take place. For example:
`ALTER DATABASE <database_name> CACHE [ ON | OFF ] ();`
You could refer to the section [Creating and Modifying Virtual DataPort Databases](https://community.denodo.com/docs/html/browse/7.0/vdp/vql/creating_databases_users_roles_and_access_privileges/vql_statements_for_managing_databases/creating_databases#syntax-of-the-alter-database-statement) of Virtual DataPort VQL Guide for more information.
Hope this helps!