Unfortunately the Altair Word Processing “manual” is more of an advertising brochure than an actual user’smanual. I’m not sure it was ever distributed. I believe the plan was to create AWP from QTYPE. You can play with QTYPE in Altair MiniDisk version at https://altairclone.com/downloads/minidisk/BASIC/.
I love WordStar. The menu system was great for its time and make basic editing easy. Both WordStar 3 and WordStar 4 will run on the Altair. Disk images for both are available in the thread linked below.