[NTG-context] how to avoid CID Identity-H encoding?

Hi Hans, hi friends, while the PDF that are produced by MkIV show no problems, some applications that use these PDF files for post-processing have big problems with CID/Encoding Identity-H. For example (as far as I have understood) german umlauts eg. "ä" are not recognized anymore but split in eg. "a" and diaeresis (with a space between?). I was told, that other PDF creators have an option to avoid using this kind of encoding. Is this also possible with MkIV? Thanks, Steffen