I write in English and French, so I'd like to have an English (QWERTY) keymap that still lets me type accented letters easily. I don't like the English-International keyboard because that requires additional keystrokes to type single and double quotes, carets, etc.
Apple has always had what I consider the best deadkey solution: Option-e is a deadkey for the acute accent, Option-u for the umlaut, etc. A keymap like this exists for Linux (using AltGr instead of Option).
Is there one for MS Windows (10), or would it be possible to create one using MS's own keyboard layout creation tool (I haven't yet discovered how to define a deadkey that isn't a single keystroke in that editor)?