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BTW There's a whole section about permissions in the User Guide Permissions
Spelling is freeware, which means you can use it for free.
On the other hand, it is not open source, which means you cannot change it or publish it in a modified form.
Time flies like an arrow, but fruit flies like a banana.
"The good news is hell is just the product of a morbid human imagination.
The bad news is, whatever humans can imagine, they can usually create." - Harmony Cobel
As hes said, this is a special use, but it would be great if it was. For example, I have a forum about poetry. I allow people to share one poem a day. In addition, each topic is subject to approval. But after a topic has been approved, I would like the "new topic" button not to appear again that day.