I know the BK-5 lets you adjust which voices are affected by the sustain pedal. I think this is one of the first mid-priced arrangers from Roland that permit this fine level of control.
Yes explore the manual. Don't just skim it, actually sit down at the board and go through the menus. It's amazing what you'll discover, and you'll notice things that will make a huge difference in your musical results!
Yep...guilty as charge Your Honor, I just skimmed it
Thanks Ted, for sure I will go through it as you suggested.

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'For a day in your courts is better than a thousand elsewhere' (Psalm 84:10, ESV)
Past: Roland (E-10, E-16, E-38), Korg i30s.
Current: Roland BK-5, Kurzweil MicroPiano.