How to change the System Settings doctype?

How to change the System Settings doctype?

I would like to add a Section Break to the System Settings doctype, then add fields.
But after an update these changes will be overwritten.
I would like to ask if there is a way to make changes without losing them after an update.
Thank you

Hi:

Core doctypes cannot be customized with “official” procedures.

Check here:

Other ways: create an auxiliar doctype linked to core doctype, and add there your custom fields.

Hope this helps!

Thanks for your help