Add old style select [ ]. Digit value & Disable left side preview in eq2 plugin

[Oleg_K]

1. Added "oldstyle" selection - [ and ]. (I can not get used to the new keyboard shortcuts.)
2. Disable left side source preview in eq2 plugin. (Because, to compare two different halves, I do not see the point.)
3. In eq2 plugin added digital output to the right of the sliders.

I would be grateful if this would be added. I am making these changes for a couple of years already. Sorry for my English. Thank you.

[eumagga0x2a]

You can set alternative shortcuts to any value instead of the default "I" for marker A and "O" for marker B in config3, no need to hardcode anything.

[Oleg_K]

...in config3, no need to hardcode anything.

I did not know that. Thank you.

[eumagga0x2a]

Patches implementing a GUI to configure these shortcuts are warmly welcome. There are other kbd accessibility things like seeking in 1/2/4 seconds steps which are absolutely not discoverable.

[Oleg_K]

Patches implementing a GUI to configure these shortcuts are warmly welcome...

This is too difficult for me...