under "?dispatch=usergroups.manage" we have added serveral different user groups.
Now we want to be able to select those user groups for products, categories and websites under the "Availability" section. (see attached screen). At the moment our own user groups are not listed in the "Availability" section.
Our goal is that some products, categories or websites are only accessible for specific user groups.
Is there already an existing plugin to achieve this goal?
If not, how much would it cost to implement a plugin like this?