Disables or enables buffering for the remote in/out window. Buffering is enabled by default. If buffering is enabled (on), then input to the remote in/out window is not sent to the target until a newline is encountered in the input stream. If buffering is disabled (off), then every character is sent to the target as soon as it is typed. Disabling the buffering in MULTI may cause problems on some remote targets if they expect input to buffer.