The information in the document contains instructions on restoring the the delete key definition on a vt-100 terminal. This document is applicable to AIX 3.2
In "vi" insert mode and ":" command mode, the Delete key does not act like the Backspace key on a vt-100 terminal.
The reason is that, for AIX 3.2, the "kdch1" definition was removed from the /usr/lib/terminfo/dec.ti file. (The "kdch1" parameter defines the Delete key on the vt-100.) The definition was removed at the request of customers for whom the "kdch1" definition was causing problems.
To restore the Delete key definition, do the following:
In the appropriate stanza for your terminal type, add "kdch1=\177," to one of the lines BEFORE the "use=" entry.
Note: "kdch1=\177," is the DEFAULT for REAL vt-100s. If you are using a vt-100 emulator program, you may need to use some other keyboard code for the Delete key in place of "\177".
Now, save the file and exit the editor.
(Tested on a 3.2 system with a REAL vt-100 terminal.)