Change keyboard shortcut for previous/next glyph

How do you do this for a wireless (non-extended) keyboard?

I’ve never used terminal, I’m not a coding geek, so please make it foolproof.

Thanks.

Fn+←
and
Fn+→

This shortcut cant be changed. But what would you change it t0?

I had problems with this exact shortcut when I changed my external keyboard. I was able to change it in the system preferences keyboard–>shortcuts–>app shortcuts. I “changed” it to the exact same shortcut and then it worked

For extended keyboards it is two of the six keys above the arrow keys.