When I find my Morgan and Morgan, or if somewhere here has the time, I'll look up that Agfa/Adox formula and see if it's composition (ADOX MCC/Adox developer) is listed for making yourself.
That's one of the things that made that collection even more notable to me, over the last forty plus years; the ability to read for yourself old formulas.
The AgfaMCC formula was never published, also be aware that a high percentage of the formulae in the Morgan & Morgan publications are incorrect. The Agfa Neuto WA Warmtone developer is very similar to Ilford ID-78. MCC is probably similar to ID-62.