A tag is a kind of marker.
The available tags and their function depends on your application and the skin you use.
Depending on the tag, it can be affected to a content or a page.
E.g., the tags "Home page news" is a tag that can be affected to the contents of kind "News": its behavior is to set the news on the home page of the web site. It is a content tag because you want to see the content of the news on the home page.
E.g., the tag "Direct access" is a tag that can be affected on pages: its behavior is to build a menu in the skin to list the pages you want to "shortcut". It is a page tag, because you want the link on this page to be visible.
There are several tags categories:
Tags are hierarchycal, this means that they can be ordered into categories or sub-categories.
These are visible as a tree.
When you are on a page or a content you can use the buttons Set a tag.
This opens the following dialog box:
An affected tag is a tag with a check.
You can check/uncheck to add or remove a tag and do OK.
Attention
If you are on page with several contents, set a content tag will set it on each content of the page !
E.g., if you are on a page with 3 news and you set the "Home page news" tag, the 3 news will be on the home page.
To avoid this, select a content to tag BEFORE opening the dialog box
Sometimes, some squares are grayed: this can be due to several things.
Maybe you are viewing a content that is not in a page: page tags are grayed.
Maybe you are viewing a page with no content (or no selected content): the content tags are grayed
Maybe you are viewing a locked content (locked by somebody else): the content tags are grayed
You have the following tools in that dialog box:
When you end by clicking OK, the tags are directly affected: there is not need to use the workflow again.
This feature is only available for versions 3.2 or later
Since 3.2.0 versions, tags can be private. Such tags can be affected or desaffected only by webmasters, having rights to affect private tags on pages or contents.
Those tags and categories are directly managed in the CMS UI.
Click on the button Tags in the Home tab: a tool will open on left with a new tool tab: Tags.
You can click on the tree root to add new categories or new tags by using the dedicated buttons.
You can also rename or remove them.
This feature is only available for versions 3.2 or later
You can define "private" tags. Such tags can be affected or desaffected only by webmasters, having rights to affect private tags on contents.
This is you that decides what to do with it, but always think to correctly organize them in a hierarchycal way: this will make their setting easier for the contributors.