Hi Rafi,
As you mentioned Servoy does have its own 'copy to clipboard' function.
I've tried that and it works for me in 2023.6 (TiNG), but also in NG for older versions.
However, there's a 'gotcha' here, the command will only work if being called from a button on a form, so the form must be focussed.
If you open the browser inspector and look in the console, you can see errors appearing if you call the command from the command console.
As for your request on my NG-service:
I don't believe I will be continuing work on that.
Like I wrote back in 2020:
Haven't had time to properly finish/test it, but if you feel like it: give it a spin
At that time I don't believe application.setClipboardContent did work in NG and now it does it feels like putting effort in something that doesn't add more value.
Hope you can understand that.
Nevertheless, I think my NG-service should still work for NG (not TiNG):
It has been a while, but I believe my clipboard-service as well as the native application.setClipboardContent command do a similar thing depending on the browser and version.
When I grabbed some code and wrapped this into the service, I bumped into a 'not working' service myself when calling the command from command line: the command needs to be executed from a button on the form.
Hope this helps and if you have any particular use cases which are not currently supported, I think you should raise a support request at support.servoy.com