ALE - mass processing

I am not sure if this is the right plave to post this. I an ABAPer but tasked with some large ALE data migration and need to understand if I can speed things up.

For example in BD87 I have 50,000 ADRMAS records at 'Ready to be transferred to App' status, I can select them and select 'Process'and they will post using one dialogue task I think. If I want to have multi tasks posting multi ADRMAS IDocs what is the best way to do this. If I submit multiple background jobs using program RBDAPP01 will it use multiple tasks ?

Or is the parallel processing option in program RBDAPP01 the way to achieve this ? I do not have access to RZ12 to investigate this, I guess I must ask Bassi but they are very elusive !!!!

Any tips and advice appreciated.

J