Multivalued slots
Since slot projects is multivalued, we can add a value to the list of values the add subcommand.
Project project1 -name XOTcl -description "A highly flexible OO scripting language"
p1 projects add ::project1
p1 projects add some-other-valueThe value of the instance variable project of Person
p1 is now the list {some-other-value ::project1}.
