How to add/delete fields in Comp Config HRESS_CC_GUIBBF_LEAVREQDIALOG

Hi gurus,

I need to make a field in the ESS leave request dialog pop-up visible, as shown below. The Component Config is HRESS_CC_GUIBBF_LEAVREQDIALOG. Under the "General Data" section we see only 4 fields - Start & End date, Processor and Note. I need to show Payroll Days as well, there.

If we go to the FPM, and see the Comp Config HRESS_CC_GUIBBF_LEAVREQDIALOG, we can see many fields are available there (see below screen shot), however the above few fields in the above screen shots are seen in the portal. Could someone let me know where this is controlled? Or if this is controlled in a Class, then which Class and the Method name would help. Or are these fields configured in any table?

For example, I need to make the field Payroll Days (ABRTG) visible on the screen.  If we see the component configuration via FPM, it is set as "Visible", but still it is not seen on the pop-up in portal !   

Could anyone give any lead?

Thanks in advance.

Regards

Jacob