Well as french is my mother tongue, I'd like to say :
- ' , ` and ^ are greatly needed so please keep'em, that's perfect,
- ä, ü and ö should be replaced with a single ¨ key, so that makes room for two other ones,
- ˊ would be a major plus as we don't have it on AZERTY and is essential for french writing (instead we have é as this is the main one we use, but for É we have to Alt+0201).
- We also need ¸ , because on AZERTY we have ç and we have to Alt+0199 to make the Ç.
Will these recommendations, you keep the same possibilities in german (well maybe a bit more keys to press, just like we would), but we add full support for french, even better than our full keyboards !
I have no idea what the compose key would allow, but as long as we can do œ (o+e) and æ (a + e), I'm satisfied.
Please grant my wish, so we can write french correctly for once !
EDIT : I second the idea of using compose keys to make a ß, but then German would seriously loose their interest in such layout.
Why not switch left and right triggers as well ? I'm more practiced to Left Ctrl, Left Alt, Right Alt Gr. and Right Shift. Well at least, that's what we have in AZERTY, didn't check for QWERTY.