Add to array not working

The spells that are in the action bar.
To explain a little bit further, i’ve done the spells and spell cast, aswell as widgets with blueprints(action bar and such). But i realised doing the way i was doing would give me problems in the future, so i started defining what i realised would cause problems in the future in c++.
Currently, the c++ is not doing anything, but fixing it after finishind this Add part would be a matter of changing a few nodes.