I am writing a paper and I have many very short footnotes (like: “Author, page #”), so I would like to put every two of them on just one line, in order to gain space.
Thank you in advance for your help!
I’m interested to know if there is a solution here. This reminds me of some older, “proper” 
type-set books which commonly arranged notes at the foot of of the page according to size. Here’s an example from a Clarendon Press book on classical palaeography - see notes 3 + 4, 5 + 6, 12 + 13. If LibO Writer could pull this off, that would be great … but somehow I doubt it’s possible.
To the best of my knowledge and as a result of some test I think this is not possible.
However, feel free to place an enhancement request.