C4C: Add a standard field to a standard Form by extending a BO

Hi,

I am trying to make a standard field available on a standard form but till now I couldn't figuring out the right way to do this.

Basically we want to add the field bellow to a Sales Quote Form.

Inspired by this post (https://archive.sap.com/discussions/thread/3759996) i tried to do the following:

1) Extend CustomerQuote BO and add a new field with a default value to see if it is displayed on the form

import AP.Common.GDT;
import AP.CRM.Global;


[Extension] businessobject AP.CRM.Global:CustomerQuote {
 
        // You must activate this business object before you can access the extension fields
        // or messages in script files, forms, and screens.
		
		element ExtBuyerRole : Text = "DEFAULT_ROLE";
    
   		node Item {
   	   
      		node ItemParty {
      	    } 


        } 
    
   		node Party {
   	    } 
    
   		node ItemProposal {
   	    } 
     
  
}

2) Activation of the Extended BO

4) Switch to admin mode on Sap Cloud App Studio

3) (Right click over BO) / Enhance Form and select the extended field to add

4) A new windows is openned -> Log in using Sap Cloud App Studio credentials

5) Select forms to add the extended field

6) Save changes

Finally, i tried to add the field using the Easy Form Editor and Adobe Livecycle, but the field is always empty. I was expecting to see the the default value printed on the form.

Can anyone explain me the right way to do this?

Thanks,