bmap_blitpart, missing

i have noticed that bmap_blit and bmap_blitpart is missing on the lite C 1.70 help files,
there is also some others functions and info, that i think its available on the beta page, but is not in the help.
i think bmap_blitpart was adden on October 2008, so the help file seems rather old already.

Yes, it was missing in older manuals, but it's in the current manual.