Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
You can manually add indicators as you have done, spellings and order need to be correct. But 1st ensure in your terminal data window, there are buffers showing that has data you can access and use.