Massive Posting in ZFIM12160 (F28) and Macros

Hello.

I have a customer with more than 30,000 invoices to post but transaction ZFIM 12160 allows me to post 5000 lines, then, I have to split in different entries. Is there another T-Code where I can submit all invoices at a time? 

My next question is how I can run a Macro to submit all invoices automatically.

 

THanks.