removed "Locate" button, to avoid confusion about the slightly odd meaning of current_command with explicit theory context;
removed "Locate" button, to avoid confusion about the slightly odd meaning of current_command with explicit theory context;

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle