Books in series order with Moon Reader Pro

[theswampmonster]

At the moment I am using Lithium reader pro & this sorts my books into series order(numerically 1,2,3 & so on).

I would prefer to use Moon Reader Pro but this will not allow me to have my books in the correct numerical order & always jumble's up the books, mixing up one series with another even if they are by the same author.

I have been told that I would need to edit the metadata(is this correct) but I am not sure how to do this.

Has anybody solved this really annoying problem?

I do admit to being a bit OCD & this problem is really bugging me.
I know some will say "stay with Lithium Reader Pro if it works" but I really do prefer Moon Reader pro.

Any help, advice, suggestions would be appreciated