oscam ymod configuration query

Hi - I have installed oscam ymod 1849 on an AZBox HD Prem running Open RSI 3.0. Initially I would just like to use this version of oscam to read biss keys. Can anyone help me with what files I have to configure. I think it is to have a reader section in the oscam.server in etc/tuxbox/config/oscam_ymod pointing to an oscam.keys file but I don't know where this should be or what exactly to put in the server file. Thank you.

Hope you don't mind another question - I installed enigma2-plugin-softcams-oscam-ymod-pli_18.49_all.ipk, the oscam.dvbapi file contains all commented out lines except 1 prioritise line. I am not sure if I have to change anything here. Apologies for a possibly daft question.