Reaty21k downloadsAdds some extra options to callouts context menu and allows you to add your own custom callouts.
This plugin can be useful for people who use a lot of custom callouts instead of default ones and want to have ability to quickly change callout types from context menu. Now you can chose which callout types will be shown in the menu. Also it adds the ability to easily add or remove callout metadata and "+" or "-" signs for collapsing.

Open plugin settings an enter the list of callout types and metadata types you want to appear in the context menu.