Yamaha codes are pretty consistent across different models. You can probably find the codes in some other document. Try some of these models of a similar vintage.
[Link: awe-europe.com]My quick survey of a couple of those files does indeed have all the commands you're looking for on the Extended tab of the RX-A2010 file.
[Link: awe-europe.com]HDMI OUT OFF MAIN 7E-82FD
1 or ON MAIN 7E-205F
2 MAIN 7E-215E
1 and 2 MAIN 7E-AAD5
PARTY ON ALL 7E-354A
OFF ALL 7E-3649