You need the last version of Nukes.
Make sure that the file <NUKEs_DIR>/nukes/src/resources/nukes-sar/META-INF/jboss-service.xml is at least 1.19 and
<NUKES_DIR/nukes/src/main/org/jboss/nukes/core/modules/core/CoreModule.java is at least 1.26.
Go and edit the jboss-service.xml file.
The "sitename" and "slogan" set the elements you are interested in.
I am curremtly working on component persistence.
that means when you install nukes it comes with installation data.
Then you change it online (with a module to be done) then it's persisted in the database. When you restart nukes, since changes have been persisted it reloads them instead of using the default one.
I am very close to finish that, I have been quite busy these past two weeks, and I've been working on it the last two days. So you can expect it soon.
So you won't have to change nukes build and compile specially for it. I think this method is quite cumbersome, but that's the only one available right now.