There are a few documents that might be helpful, but there is a lot to do still for me for providing proper documentation about the RTCC MFD.
Under Doc\Project Apollo - NASSP\Flightplans\Apollo 8 there is an RTCC MFD input guide for Apollo 8. It was created for the NASSP 7 release and is quite outdated by now. But there will be something like that for all missions and fully updated. The MFD has undergone constant changes, so I didn't write such a guide so far.
Under Doc\Project Apollo - NASSP\Programmers Notes there is a RTCC MFD manual, which has been updated in some sections at least. The sections about the rendezvous calculation, translunar midcourse correction and lunar orbit insertion are up-to-date.
jalexb88 has created an RTCC MFD input reference in the Doc\Project Apollo - NASSP folder. This is for the more advanced mission planning features in the MFD though, which are even more difficult to use than the normal mode of operations in the MFD. I don't think this is any help without explaining a lot of these displays and features. But the mission planning features allow a workflow very similar to the real one, with the same displays that the flight controllers looked at etc.
So in short, no, there currently isn't a step-by-step guide for Apollo 11, but there will be. I think I'll work on better documentation very soon.