Enhancing Standard Webdynpro POWL component

Dear Expert's,

I have a requirement to enhance Standard Webdynpro component EAMS_WDC_JOB, which makes use of POWL component. My requirement is to change few description's and remove couple of standard button's as highlighted below. I went through some link's, but not getting an appropriate solution. Can someone help me to solve the issue ?

Thanks and Regards,

Gaurav.