On my lead a1 there is monitor button where I can see the setting of all parameters but there is no such thing on the ob6 so I downloaded the editor from soundtower.
You are correct, the OB-6 doesn't have a way to display current parameter values. However, it does have the little dot that shows up in the display when you change a parameter and cross the original saved value. A little patience and some knob tweaking and you can make every knob and button reflect it's stored value without the software.
The SoundTower editors never fully capture the state of the hardware anyway. The FX are always wrong and my LFO sync button is usually wrong. I only use the stand alone version as a librarian. Even then, I have to ensure that all the settings are correct before I save with the software. I use editors with many synths...Sub37, the Minitaur, Roland Integra 7 (a very complex synth), JD-XI (another complex synth) and all those other editors at least capture the state of the hardware correctly. Shouldn't that be "A #1" as far as priorities go in a software editor? Plus, all the other editors were free of cost. I still do Sysex dumps as back ups for all my presets just in case.