Documents in SEM-BPS

Hello

I have read the How to papaper on mass upload of documents into BW and also the How to paper on docs in BPS and BW.

From these, I could not determine what function modules I would use if I were to write and retrieve documents to/from SEM-BPS. I would like to do this, as we are running BW 3.0b and SEM 3.1 and it is not possible toload office type documents to layouts. I am building a user interface to enable this and hence the need for the function modules.

Can anyone please point me in the right direction.

Thanks

Cameron