It would be a great help if the working plane would stay as selected and not revert to the default ground plane when selecting & inserting nuts, bolts, cogs etc.
At the moment you have to select the working plane then select the PIO and then, using the arrows in the working plane window, re-select the working plane again....and it can be a bit of a pain.
I've also noticed that the working plane reverts to the layer plane from the screen plane when using the mirror tool.
In short I wish the user defined plane stay selected until told otherwise.