Assigning wage types to custom processing class specifications

Hello Experts,

I need to create a cumulative wage type 9XXX and assign existing wage types. I have created this new cumulative wage type 9XXX using OH11. Also created a new processing class specs. and attached to existing processing class (90-99) using V_T52D2.

However, I'm not sure how to attach the existing wage type to this cumulative wage type 9XXX and test it.

Please help.

Thanks in advance.