Permission: Variations Generate
The permission 'variations-generate', if present on your system will control which ProcessWire Admin users can generate variations from a given variations configuration and link those to a page. A user without the permission will not be able to generate these combination and link them to a page. This permission is not relevant to attributes.
Please note that this permission is not created when the module is installed. To use it, you will have to create it first then assign it to a role(s) which in turn are assigned to users, in the normal ProcessWire way.