can't combine two editions by anonymous

[Gijs]

I'm trying to combine 'het roelandslied' (dutch version of Le chanson de Roland) with 'The song of roland' (English version of the same book). Both are by anonymous, but this 'author''s list of books is so ridiculously long, I cannot select both editions at the same time. Even filtering on 'ro' or 'land' fails. Can anyone help?

[Paula]

add your initials to the title of both, then filter on your initials (or a uncommon word) then select both and combine, then re edit to remove your initials or uncommon word

[Gijs]

That is good advice - thanks!