Followed installation instructions for multisite.
Thought it was resolved as stated here.
Unfortunately it doesn't seem to work (at least) on multisite. :(
By the way. What would happen in a situation that:
User has already created 10 pages and 30 posts.
I install and activate the plugin and set it for 5 pages and 20 posts.
What will happen to the rest of the posts/pages?
Brilliant idea. Thanks in advance.