Import ADD iso import REPLACE

Hi all,

I'm in the process of rebuilding up my library with cleaned data
For this, I was planning to setup 2 libraries: the live library which would hold the data after clean up and the validation library in which I would load the ebooks, download & clean the metadata
After cleanup, I would like to export the batch and upload it in the live library, before emptying the validation lib and proceeding to the next batch of ebooks

My issue is that the import function is doing an import REPLACE, and I need an import ADD

Is there any known hack to enable IMPORT ADD ?


Thanks a lot!