putting more than one sales order on the same picking slip(consolidated picking)

Hello Guys, 

I am completely new to AX 2012R2(5 months exactly) and is determine to understand the application, its controls and logics. 

I have a request from my employer to implement a more efficient way of working in the warehouse and to accomplish this, I am task to develop consolidated picking.

I have enabled consolidated picking from the ITEM MODEL GROUP but after doing this it did not work. I have been researching but is yet to find a way to implement this, hence me joining this forum.

How do I implement consolidated picking (more than one sales order in a picking slip)

Any help/suggestions would be greatly appreciated.