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I found another problem with the MacroTab Widget related to the recent checkbox element improvement.

The checkbox element is not taken into account when numbering variables. All elements below the checkbox are shifted. #4 has value #5 etc. Two checkbox elements will shift everything below by 2, as in the screenshot.

Yes, the touch probe should be fine as long as it can be wired this way.

Note that many touch probes have a contact closure to ground, so be careful...
 

It seems the machine originally homed this way, but yes, you need to
guarantee the you are 2 index marks away from the end stop before
starting homing.

I believe there's no way to avoid using a home sensor. Because if the machine is left at the last index on the encoder line, when searching for the next index marker, it might hit the limit switch. But when you have a home sensor, it's much easier—you only need to check the first, closest index marker.

Thanks. Yes mine are of the PNP type. And same goes then for the input of the Touch sensor? This is not a PNP. This acts more like a mechanical switch.

That looks basically OK

If you have PNP type sensors, you do not need any additional interface components
that is the sensor output goes directly to the 7I76EU input.

7I76XX inputs are quite rugged, they need no additional protection.