Ruby has posted a very useful announcement about new pro bono services in Scotland modeled on LawWorks. Unfortunately the post is locked and I can't comment there but LawWorks, which has been operating in England & Wales for sometime, doesn't accept applications in relation to family cases. They will accept cases relating to housing, debt etc. I assume the same will apply in Scotland.
In any event at the moment the organisation is "encouraging and enabling lawyers to become actively involved and use their skills for the benefit of individuals and communities. " Lawyers can become members but as far as I'm aware the public cannot access the service at present. So unless someone knows differently I wouldn't rush out expecting assistance from LawWorks Scotland just yet.
There is, of course, still limited help available in family cases from law clinics such as those run by Edinburgh and Strathclyde Universities.