Design table option not available in EM

I restored a database from one server to another. I created a SQL Windows
Authenticated login account for a developer and granted access to the
restored database as owner. When developer right clicks a table, the design
table option is not available. Does anyone know why this occurs in EM?
Is that account the one in which the server is registered in EM?

Design table option not available in EM

I restored a database from one server to another. I created a SQL Windows
Authenticated login account for a developer and granted access to the
restored database as owner. When developer right clicks a table, the design
table option is not available. Does anyone know why this occurs in EM'Is that account the one in which the server is registered in EM?