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The mounting holes are not in the schematic, any more than the mounting holes for the potentiometer are. Those mounting holes have pads, of course and are called MH1 and MH2. But I see no way of changing the 'REF**' text for the mounting holes in the PCB. In the Pad Properties pane, the Pad Type is NPTH mechanical and the Pad number field is greyed out.

There are footprints for Mounting holes, but no symbols. That seems to indicate that symbols are not required.

It sounds like they have not been annotated.

Do the mounting holes exist in your schematic, or did you just try to add them onto the PCB? If the latter, that's why the reference hasn't been updated: it's because they are not in the netlist. If you double-click on the mounting hole (in pcb), you will get the footprint properties dialogue; just manually change REF** to something like MP1, MP2, MP3, etc. "Update from schematic" will always tell you they aren't used because they aren't in the schematic. I have a personal "Mounting_Point" library with schematic symbols for holes and mounting points, with and without grounding connections. That's your issue - there is no mounting point or hole schematic symbol that I can see in the standard schematic symbol libraries.

Select them and Mark not in schematic as a property.

On Wed, Aug 28, 2024, 2:27?PM John Woodgate via <jmw=[email protected]> wrote:

I'm in trouble again. I added four mounting holes to my board and the come with? text 'REF**'. Update PCB describes them as 'unused' and proposes to delete them, which is obviously wrong. I can't find a way to change REF** to something else. Please advise.

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Best Wishes
John Woodgate
Keep trying