What is BlueSpiceCategoryCheck?
This extension will remind user to assign a category to a page before saving it.
In order to use this feature, it must first be enabled in namespace manager for the namespace this functionality is desired for.
When trying to save a page BlueSpiceCategoryCheck is enabled for, if the page does not have category already assigned, user will be reminded to assign the category before continuing with saving. Page can still be saved without assigning a category, but user must explicitly check "Ignore" checkbox, thus confirming they are knowingly saving the page without assigning a category.
Reference page for this extension.