The first two need to be created on the docs site
The page should be identical (except for title) with https://help.joomla.org/proxy?keyref=Help40:Components_Cache_Manager_Settings&lang=en

Got that - will do.

There is a snag. It turns out that https://docs.joomla.org/Help4.x:Components_Check-in_Configuration and
https://docs.joomla.org/Help4.x:Components_Plug-in_Manager_Options already exist. I don't have permission to move them because they have been translated. I have created two new Help pages:
https://docs.joomla.org/Help4.x:Components_Checkin_Options
https://docs.joomla.org/Help4.x:Components_Plugins_Options
and would like to have the Help key strings changed accordingly. I have it in mind to change a number of help file names to more compatible with Page Titles. For example, I note that Options is better than Configuration and the term Manager seems to be out of favour, except in keys.

@ceford this is all stuff you should take up with the docs team

I recently joined the docs team and I have taken it up with them. They seem content to let me get on with it! Nobody is saying No but nobody is saying Yes either.

@ceford what is the status with this issue now?

This issue is resolved with a complete new set of Help file names - already merged.

And thanks for the reminder - I had completely forgotten this one.