Make the Space Attachment Macro filterable

We can use it to show all attached PDFs in a Space (so more than just a wiki-page). Now it is only possible to show all files of a space without the possibility (in the macro) to pre-filter it.
Without (pre)filter we have now 35 pages of results while with the filter that we want to use (limiting to docx,xlsx,pptx and pdf) we would have < 3 result pages. 

Thanks for considering this as a new feature, as it was discarded the last time someone had this suggestion.