We have Admin Flush W3TC Cache 1.2 and W3TC 0.9.2.8 installed on our site.
The 'Empty All Caches' button works when logged in as an Admin user, but does not work when logged in with any other user (e.g. Editor, Author, etc).
Clicking the 'Empty All Caches' button using an Editor, Author, etc user results in the following message: "You do not have sufficient permissions to access this page."
We'd like all users to be able to use the 'Empty All Caches' button. How can we enable this functionality?