It may be necessary to increase the size of the buffer pool above the
                  		  default setting of 400 KB. See the profile parameter description of
                  		  EDTBPSIZE in the
                  		  Parameter Reference documentation.
               
When you open a new editing session from the program editor, the old
                  			 session is stored in the buffer pool if the profile parameter
                  			 EDTRB (see
                  			 the Parameter Reference documentation) is set. When you
                  			 leave the new session with the cancel or exit function (see also
                  			 Exit
                     			 Function), the old session is freed from the buffer pool.
                  			 The NEXT editor
                  			 command can be used to jump from one active session to another.
               
If the EDTRB parameter is
                  			 switched OFF, the ring buffer is not used, and the new session
                  			 replaces the current session. If the editor profile parameter
                  			 AUTOSAVE (see
                  			 Editor Commands) is switched on, the contents of the
                  			 corresponding session are saved to FUSER.
               
If you intend to use the LOG editor
                  			 command, we recommend that you increase the size of the buffer pool to 1 MB.
                  			 Changes are generally stored in the buffer-pool editor.