Slido retention policy enforcement

For us it is very important that as little information as necessary is stored in cloud applications. So for us it would be best if Slido could be configured to only work within a Webex meeting as the old survey function did.

So we need the following options:

Option to deactivate the ability of the users to change a Slido event end-date (very important, because of effectiveness of the retention policy)
Option to deactivate the ability of the users to create a Slido event in Slido.com
Option to configure the default duration of a Slido event if created in Slido.com
Option to configure the default duration of a Slido event if created in Webex
Option to deactivate spaces in Slido.com
Option to deactivate the ability of the users to log in into Slido.com even if they have a Slido-license (via Webex-license).