The Saint Aelfric Customary for the Daily Office of Morning Prayer has been completed.  You can read it all here: https://saint-aelfric-customary.org/customary-morning-prayer/

The idea behind this is provide guidance regarding when and how to use the various options in the Prayer Book in order to make reasonable use of the scope of resources in the 2019 Prayer Book while yet retaining a stable tether to the great well of Anglican tradition before all these modern forms came to the fore.