To create an Information WT, you can copy a WT that is in your current RT but only for information purposses (is not part of gross, net, deductions, etc...).
To generate it during Payroll Processing, you create a PCR that will process the WT you want alternative descriptions, you start with operation ADDWT *, you make the required decisions to decides who gets what, and depending on the return values you create Information WT A or B.
Example :
PCR for ESG * WT /401
D OUTWPPLANT
**** ADDWT * ADDWT INFB
AAAA ADDWT * ADDWT INFA
Then, these Information WTs are mapped to your report instead of /401 (but I still can't understand why you would want a different description for a technical WT).