Add a Field Planned Hours in Record Working Time Application ESS

Hello,

We have a new requirement to add a field "Planned hours" in the Worklist table shown in the attached screenshot. The same field has to be created and displayed on the portal for application.

Dc :sap.com/ess~cat

Application : CatDataRecord

I am new to the changes for ESS Cat2. Please advice how to proceed.

Thanks.