doubts with infotype 27

Hello experts,

My name is Marcel and I´m PS Consultant. My recent client wants to distribute costs in WBS. I was browsing in the forum and I realized that infotype can help in my scenario. Actually, I want to use this infotype to distribute the wage costs to different wbs and cost centers without using CATS. Moreover, as the employer works in more than one project monthly, this infotype fits well in my scenario.

Unfornately, I not sure the next procedures to see costs in my project. Wich transactions or procedures need I to see costs in my projects?

thanks

Marcel