When an block instance is created or edited you have to introduce the following values:
In the left side of the screen:
- Administrative title: a human name to identify this block instance. (Like Recent comments)
- Machine name: Will be generated automatically from the administrative title. Alphanumeric and underscores only.
- Block: The block to display. Each instance can render only one block.
- Description: Only for internal use. If defined, will appear with a (?) in the listing instances pages. Is useful to resume when the block is visible.
In the right side of the screen:
- Override title: Blocks usually ships with a default title. You can override it here.
- Conditions:
Conditions defines when a block will be displayed. The first checkbox (Require all conditions) means that all the conditions have to be met in order to display the block.
- Site wide: When this option is enabled, the block will be always visible (even if require all conditions is set and other conditions are not achieved)
- Content types: When you are seeing content, that content have a determined type, you can display blocks depending of the type of the content that you are seeing at this moment.
- Paths - Display on: Use this option to display a block when users are in certain paths. If you want to display a block in all the pages that starts with blog/ just post blog and blog/* in separated lines.
- Paths - Hide on: This option is opposite to the previous one. Note that block instances with this option enabled will display their blocks always except on listed paths. It is similar to the site wide option but with specific path exclusions.
- User roles: Allow to choose what kind of user can see the block.