As you said Egon, the middle point is absent. Your guessings are correct. The definition of being or not a dead key goes in the software configuration as you said. I added the middle point, moved the Ç key to one where can be typed as lower case or upcase (I placed it badly in the previous layout). Now I placed it on the right of the Ñ, so I moved the acute to the same place as other symbols, and then rearranged the º and ª symbols. Hope you like it.



Layout in libreoffice format