@ Afrow UK
This is brilliant! It works;] thank you so much for answers.
I have a question on the MUI_UNPAGE_COMPONENTS not
displays the description of products and even add in the code:
! insertmacro MUI_DESCRIPTION_TEXT $ UNSEC0001) ($ (UNSEC0001_DESC)
LangString UNSEC0001_DESC $ LANG_POLISH () "some text"
Do I need to somehow define differently?