Remapping keys

I don't think you can do what you want without a macro app like Keyboard Maestro. However, the Fn key can't be used except when using the F keys.

With Keyboard Maestro you can select any key combination, like Command + Space to be Delete in just the Firefox app. This is what it would look like:

I have over 100 macros in KM ranging from opening apps to inserting standard text into documents/posts, etc. IMO it's my most valuable, and used app.

What do you mean by "Delete"?

Do you mean just moving the mac backspace function from the <- key to the fn key?

Or do you mean adding a windows type "forward delete" key?

If you mean the latter then hold fn while using the <- backspace key

(your first use of the fn key in 15 years) maybe?)

Then I'm out as that is very silly

I have enough trouble remembering what those 3 apple keys do now without remapping them.