First thing is, We will have to configure form in PE51 in transaction where we should define
1)Attributes,
2)Bacground,
3)Text modules,
4)Single fields
5)Windows(where we should ad all wage types which we wnted to show on payslip)
6)Line layout
7)Cumulation ID's ( We should add wage types which you wanted to cumulate so that we can sum all of those wage types)
8)Rules where we can define define ome mathematical conversion rule same can be assigned to a wage type in Windows and Cumulation ID's
Once form is ready, Then we should define a variant in Transaction PC00_M**_CEDT with form and selection parameters same in can be called in Payroll driver accordingly it prints the values on payslip.
Regards
Venkatesh