There is a similar thread already, but as it was inactive for a year and my request is slightly differently, the Forum suggested to create a new Thread instead.
The old thread is Replacing jumpers with dip switches
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Sphere478 wrote on 2022-03-21, 00:59:

who suggested using Switches.

So what I'd like to do is to switch the jumpers "on the fly" without opening the case. Previously I was looking for a software solution, but the SS7 offering that seem to be super rare, and K6 2+ and 3+ CPUs are super expensive.

Essentially I'd like to do is to have an easy way to change multiplier and cpu clockspeed "externally". However I don't need fine control. Instead it would be enough if I had two configurations, and ieally just one switch (maybe even the power button).

Replacing 1 jumper with 1 switch which can be on or off (2 legs, or 3 legs but only 2 used) should be simple enough. But I don't want to have 4 Switches which I need to set correctly every time I switch speed.
So I was looking for better solutions.
My assumption is that a 4PDT (ON-ON) switch with 12 legs would be the best option, like:
https://www.amazon.de/heschen-Kippschalter-Po … /dp/B072JK8WYF/
As you probably can't double-use the center pin, you could basically manipulate 4 jumpers at the same time (there are 6PDT, but they are expensive and would need to be imported from overseas)
I don't know yet how many jumpers I would need to modify but this would set a limit of 4 I guess (Or I would need to go for 2 independent On/Off switches, which come with basically unlimited amount of circuits, but this would be less elegant)
Is my assumption correct, or do I miss something?

I checked my turbo button which is actually using 6 legs, and my assumption was that its a 3PDT. I measured the pins, but this doesnt make too much sense to me unless its broken. The one side works as intended (bottom-middle are connected if not pressed, upper-middle is connected if pressed, they activate the LED.
However the 3 pins of the other side do not have any connection either way when measured. However they do have cables which run to the Turbo Plug for the board. The side which goes into the board has 3 pins (white, blue, black), only white (middle) and blue (bottom) are connected to the turbo button (as mentioned, no measured connection). The black cable is lose, possibly intended by the previous owner (I bought the empty case used, but the sign said, there was a K6-2 in there). But even without the black cable I think this button should have a connection between the Blue and White cable-pins, shouldn't it?

The Blue, White and Green Lines work as intended (Blue and White are also connected to the segment turbo switch)
The Blue, White and Green Circles seem to do nothing (the Blue and White circle are connected to the 3-pin plug intended for the turbo-switch on the board)