The 'cog' icon in the top right of the screen that used to open the Admin/Settings Area in CRM has now been changed so if forces us to the new Admin Centre Interface, however the settings in the new Admin Centre Interface do not include the option that you use to enable the new Custom Help (only all the old options for custom help with URL and Learning Path).
ie. the option that MSFT have highlighted in the following link (showing the old interface) is not in the new Interface.docs.microsoft.com/.../create-custom-help-pages
TBH: we are getting sick and tired of the random changes that are being forced on us (outside of the 2 forced upgrade windows - these windows are when such changes should be made other than opt-in changes). We click somewhere one day go somewhere and then we do the same thing the next day and get sent somewhere else, or what you are looking for has been pulled off the page and put somewhere else and you waste time trying to find what you are looking for as there. We are also getting feedback from our customers' Office 365 Global Admins etc that they are also really annoyed as it is wasting there time also.