Changing only last line of item lore to song name

[iKoary]

When I try to make custom lore for discs it is replaced by song name after being burn
Can you make so only the last line is replaced by song name?

[Apehum]

What do you mean by replacing only the last line? Because the is no lore by default, so there is nothing to be replaced.
Maybe you mean append the song name to the end of the lore by creating a new line?

[iKoary]

Yes, that's what I meant

[Apehum]

I've added a config option burn_lore_method in the latest pre-release. Set it to APPEND, and it should work as described above