Hi from Spain.
My question is: "Is there a way to substitute register form by a multiform?". I need the user fill some fields in the 1st step and then, after validation, fill the rest of the fields in the 2nd step.
I have been checking some Auth Plugins but those plugins substitute the register form instead of add new functionality.
Thanks in advance.

Not tested in 3.0 , some code example :
framagit.org/SondagePro-LimeSurvey-plugin/registerQuick
framagit.org/SondagePro-LimeSurvey-plugin/registerPanelWizard
framagit.org/SondagePro-LimeSurvey-plugin/replaceRegister

And surely the best 3.0 comaptible:
gitlab.com/SondagesPro/extraRegisterPassword

Thx! I'm gonna test them.