-In that way, it is - somehow - similar to the layout "United States-International" (on Windows), although this project moves all dead key combinations to the modifiers `AltGr` and `AltGr+Shift`. That way, this project solves the most typical issues, among which the quotes (' and ") can be used as usual (without pressing the spacebar afterwards), while the acute accent (´) and diaeresis (¨) are found on `AltGr+'` and `AltGr+Shift+"` respectively. This project has borrowed several aspects from the EurKEY Keyboard Layout (by Steffen Brüntjen).
+In that way, it is - somehow - similar to the layout "United States-International" (on Windows), although this project moves all dead key combinations to the modifiers `AltGr` and `AltGr+Shift`. That way, this project solves the most typical issues, among which the quotes (' and ") can be used as usual (without pressing the spacebar afterwards), while the acute accent (´) and diaeresis (¨) are found on `AltGr+'` and `AltGr+Shift+"` respectively. This project has adopted several aspects from EurKEY (by Steffen Brüntjen).
+
+## Difference between Classic and SW (switched) editions
+
+- **Classic** : Keeps all standard keys on US QWERTY and adds customizations to the `Right Alt (+Shift)` modifier.\
+[**-> Layout image of Classic edition**](https://pieter-degroote.github.io/UltimateKEYS/image-classic.html)
+
+- **SW (switched)** : Also adds customizations to the `Right Alt (+Shift)` modifier, but also makes the symbols !, @, #, $, %, ^, &, \*, ( and ) accessible without holding down Shift. The numbers have moved to Shift (as most computers have a separate numpad).\
+[**-> Layout image of SW edition**](https://pieter-degroote.github.io/UltimateKEYS/image-sw.html)