Play Panel won't dock into work area any more (and wouldn't stay there when it did)
I like to work with the Play Panel tidily docked into the work area where it won't obscure part of the score, along with the Palettes and Inspector panels. In MS3.0.5 this seems to have stopped working. The work area did turn blue on one attempt to drag the Play Panel into the work area, but it won't go in there.
In the previous version (3.0.4) it would dock into the work area, at least after several attempts. Even then, however, the tabbed panel wouldn't stay visible between one MS session and the next. The only tool panels which persist between sessions seem to be Palettes, Inspector and Selection Filter.
I hope these changes aren't intentional!