Q said to go back and read EO's. He referred to the Military Justice Act of 2016 in regards to the Jan 1 EO.
2016 Military Justice Act of 2016 PDF
https://nimj.org/wp-content/uploads/topics/military-justice-law/military_justice_reform_act_of_2016/2016%20Military%20Justice%20Act%20of%202016%20Bookmarked.pdf
POTUS EO
https://www.whitehouse.gov/presidential-actions/2018-amendments-manual-courts-martial-united-states/
Interesting….
Who serves as "Judges"
TITLE XII—MILITARY JUSTICE REVIEW PANEL AND ANNUAL REPORTS
The Military Justice Review Panel would replace the Code Committee. The Military Justice Review Panel would be an independent, blue ribbon panel of experts tasked to conduct a periodic evaluation of military justice practices and procedures on a regular basis, thereby enhancing the efficiency and effectiveness of the UCMJ and the Code’s implementing regulations.
The proposed Military Justice Review Panel would be composed of thirteen members. Each of the following officials would select one person to serve on the Panel: the Secretary of Defense (in consultation with the Secretary of Homeland Security), the Attorney General, the Judge Advocates General of the Army, Navy, Air Force, and Coast Guard, and the Staff Judge Advocate to the Commandant of the Marine Corps. The remaining members of the Panel would be selected by the Secretary of Defense based upon the recommendations of each of the following: the chairman and ranking minority member of the House Armed Services Committee and the Senate Armed Services Committee, the Chief Justice of the United States, and the Chief Judge of the U.S. Court of Appeals for the Armed Forces. The Secretary of Defense would designate one member as the Chair; the Panel would have a full-time staff.
2016 Full Manual for Courts-Marshall of the US
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiy3fqb7MPfAhULA6wKHcVYDDUQFjAAegQIDBAC&url=https%3A%2F%2Fjsc.defense.gov%2FPortals%2F99%2FDocuments%2FMCM2016.pdf%3Fver%3D2016-12-08-181411-957&usg=AOvVaw39Fz8ALVNqUo1fcFtWauiW