Turn off Edit Externallay on Enter key?

[DonMcKenzie]

At times, I don't fully depress the shift key before hitting enter to create a new sibling item.

This causes the item to open in Word.

Can this be changed / disabled?

I rarely edit items externally.

It seems like this is (or was) an option but I haven't found it.

Thanks for a great program that I can't imagine being without.