cd - a shortcut for 'select -module <name>'

    cd <modname>

This is just a shortcut for 'select -module <modname>'.


    cd <cellname>

When no module with the specified name is found, but there is a cell
with the specified name in the current module, then this is equivalent
to 'cd <celltype>'.

    cd ..

This is just a shortcut for 'select -clear'.