Commands to monitor and modify the O database. In the current implementation there is no facility to read binary O files in this menu. An O database datablock has a number of associated properties: its name (up to 25 characters), its type (different kinds of data can be stored with types `I': integer, `R': real, `C': 6 character variable and `T': text) its size in storage units, a write-back-to-disk flag (all user created data gets a flag to allow writing back to disk on a save command, but the databases for example are not stored in the users disk database).