SOLVED. 
Hi,
Going through the forums, and with help with friends (thanks Maarten Bos) and SAG I have been able to solve this.
The problem still remains: webMethods Deployer cannot change a portlet property on the Deploy Map. (Maybe on a next fix? Please?).
The workaround:
From wmusers.com and Change Target URL of a consumer webservice - webMethods - Software AG Tech Community & Forums
- In the web connector in your portlet, define the Endpoint Address property as
#{environment["wsclient-endpointAddress"]}/<Full name of the WSD on the IS>
(put a slash there to separate the variable from the wsd name).
-
the the the Full Name property on the properties view when you select the WSD from the Package Navigator (or you can copy/paste from the WSD to the text field as usual)
-
Publish the portlet and deploy it
-
Go the target MwMS and, as sysadmin, enter Folders > Administrative Folders > Administration Dashboard > Configuration > CAF Application Runtime Configuration > [the name of your application portlet]
-
Change the Web Application/Environment Entries/wsclient-endpointAddress value to match your WS target for that environment (do not end it with a slash/). Example:
http://targethost:5555/ws
I was getting wrong 1) and 5) (the slash…) and confused by the lack of an Portlet/Application entry in the Deploy Map step of the Deployer.
Season’s Greetings.
#webMethods-BPMS#MWS-CAF-Task-Engine#webMethods