How to remove default presets?

[pangwolin]

Is there even a way to delete the default presets?

For instance, in the resize dialog box, how come the delete button is greyed out for them?

Can you avoid hardcoding them in future releases and use them as regular *.xbs files so that we can remove these cluttering items please?

[xnview]

the delete button is to remove your custom preset, but not default