Sorry for the mix up of the field name.
It is indeed that field.
You do not have to worry about the character ":".
I am going to set Title and Label of this field to "Besluitsoort".
I am also going to change the values so there will be no more illegal file name characters in it.
I want the choosen value to be added as the last part of the filename.

What I did not explain in my previous question is the following.
The macro works great, but the presentation/screen to choose a directory where to save the document is confusing for most of my formusers.
That is why I would like it to be the normal screen that appears when you want tot save a document, but then with the documentname already preset in the "saveas" box, and with the fileformat set to the choice the user has made (pdf or docx).

I hope this makes sense to you.
Thanks for the help so far. I already learned a lot about macro etc.