How to get there
From the Plug-ins Menu, choose Note, Beam, and Rest Editing, Patterson Plug-ins Lite, and then Beam Over Barlines.
What it does
This plug-in allows you to automatically extend beams over a barline as shown in the figure below.
To use this plug-in to beam over a barline, do the following.
Note that hidden tuplets created while generating beaming over barlines may corrupt the Human Playback performance in regions where the Beam Over Barlines plug-in has been applied. See Playback Settings dialog box for more information regarding Human Playback.