No, that would be because you didn't know what standard keyboard layouts are.
* CAN/CSA Z243.200-92 is a standard keyboard layout. One Alt modifier, one level 3 shift: https://www.oqlf.gouv.qc.ca/images/ti/clavier.gif
* DIN 2137-1:2012-06 T3 is a standard keyboard layout. One Alt modifier, one level 3 shift: https://de.wikipedia.org/wiki/Datei:German-T2-Keyboard-Proto...
* ABNT NBR 10346 2 is a standard keyboard layout. One Alt modifier, one level 3 shift: http://www.windowsintegral.com/wp-content/uploads/Teclado_AB...