How add URL LINK in SRM shopping Cart

HI All,

I ABAP developer new to SRM.

I need to add an URL in STD shopping cart screen to do some functionality.

Navigation SOHP CART ICON-->you will get Screen

"SHOP IN 4 STEPS"

1) Select goods\services 2) Shopping cart 3) Complete and order 4) Conformation

Buttons: Previous   next | close

---------------------------------------------------

Here I have list of URL's

Browse:    ------STD existing links-----------

                 ------Std existing links----------

                 ------Std existing links----------

                 I need to add link here

Free text Describe what you need ..................

----------------------------------------------------------

Buttons: Previous   next | close

When I see the  ------STD existing links----------- they are build up with   wdcomponents with URL links(linked with actions to do some functionality).

What I understand is, create a ZWD component-->view-->context-->Create link. On action of the link write your business logic  functionality.

What I need is, how to link my ZWD component to above Shopping cart screen.

I aslo see  number of links in the sreen  differ form user to user in the screen.

is there any standard way or I need to achive it through GAF config by  using apllication

Technical Information for UI Element

General Information About the Application and Component Application: /SAPSRM/WDA_L_FPM_GAF Web Dynpro Component: /SAPSRM/WDC_DODC_SC_GAF_C Window Information: IV_L_FPC_GAF_CA View Information: V_DODC_SC_GAF_FSCA Configuration ID: /SAPSRM/WDCC_FPM_SC_GAF_C Information on Field Field ID: OLD_SC_SEARCH Type of UI Element: LINK_TO_ACTION UI Element Library: STANDARD

2)

Technical Information for UI Element

General Information About the Application and Component Application: /SAPSRM/WDA_L_FPM_GAF Web Dynpro Component: /SAPSRM/WDC_DODC_SC_GAF_C Window Information: IV_L_FPC_GAF_CA View Information: V_DODC_SC_GAF_FSCA Configuration ID: /SAPSRM/WDCC_FPM_SC_GAF_C Information on Field Field ID: INTERNAL Type of UI Element: LINK_TO_ACTION UI Element Library: STANDARD

3)

any suggestions will be appreciated .

Thanks

Gopal.