Buf
Set Visual Buf nnnn
By default, Qedit reads and writes a maximum of 10,000 characters per screen. Set Vis Buf will increase or decrease the size of the screen buffer. The minimum size is 2,000 characters and the maximum is 30,000. Increasing the buffer size may increase the load on your network — watch for hangs, delays, and write errors. On MPE V the default is 6,000 and the maximum is 8,000.