NEVER MIND _ SOLVED (see the Update below)
I can't figure out how to make "Filters" show on the Right click menu for a Music tab. On my older computers where I use MB, that menu option has always been there (below Use Custom Layout and above Close Tab). But I just set up MB on a new laptop, and that menu option is not there. I can select the filters by right clicking on "Music" in the left sidebar, but not by right click on a tab header.
How do I enable the Filters entry on this menu?
UPDATE:
This was probably just stupid user error and faulty memory. I am leaving this post here just in case anyone else sees this thread looking for a similar solution.
My older computer is already running 3.4.7708, and that is what I was using for the comparison with the new laptop (where I installed version 3.3). As soon as I updated the laptop to 3.4.7708, the Filters showed up on the sub-menu! I just assumed it had been there all along.