Copying Crop Presets file

I think this is the best place to put this as it is really a full Photoshop rather than an Elemenst matter!

Some years ago I used a version, no idea which, of full Photoshop to create some metric A series crop presets.

The presets are held in:-

C:\Program Files (x86)\Adobe\Adobe Photoshop CS2\Required\Default Tool Presets.tpl (at least in CS2)

I use Photoshop Elements and even in 2021 there are still only inch sizes preset crops. In 2021 the location is:-

C:\Program Files\Adobe\Photoshop Elements 2021\Locales\en_US\Support Files\Default ELTool Presets.tpl

My old "Default ELTool Presets.tpl" works in Elements 2021. However I now need to edit the tpl file. This cannot be done in Elements so I added my new requirements to a version of CS2 I found online; the presets work in CS2 but when the tpl file is copied and rename to Default ELTool Presets.tpl the new metric crops do not show. I can confirm that the new copied file size is the same in Elements as in CS2.

I wonder if there was a change between the version of Photoshop I originally used to create my working Metric crop preset and the way CS2 handle added presets e.g. does it hold added presets in a seperate file?

Any advice please on getting metric present in Elements?