It is possible to have three block configuration pages:

• Assign roles
• Permissions
• Check permissions

Only one is shown in the block edit cog, others were supposed to be accessible from the administration menu. See attached screenshot for clean. This menu is no longer displayed in boost.

Some relevant discussion https://tracker.moodle.org/browse/MDL-25451?focusedCommentId=369143&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-369143