can you add:

You can visit the FAQ Admin Page in your WordPress Dashboard. There is a checkbox there that can allow you to choose whether to have only one question open at a time, which is the feature you are looking for.

(p.s. Please let me know if this does work for you.)

works like magic ??

great job!

Tell me two last things (not dramatic but useful), please:

– I want to categorize the questions, grouped on the same page(s). Is it possible, e.g. to write the headers belonging together in another color (different class in the <h>-tags) or just use a <h>-tag for the group’s heading, that is not converted to a spoiler?
– Can I put the text contained in the <p> in a box, background etc or it will affect the spoiler?

(I think I trie but it messed up).