If your dataviewer real-time session is showing an xmgr plot with the right margin being clipped [attachment 1], here is a work around to view the complete plot.

1. resize the xmgr window to the right to provide enough space for the plot to "grow into" [attachment 2]

2. in the dataviewer window, while the real time plot is still running, activate a second channel (it doesn't matter which one) [attachment 3]

3. finally, while the real time plot is still running, turn off the second channel. Your plot should now look correct [attachment 4]