change lines 130 and 138
from
Code:
creaturesName.Add( creatureName.ToLower() );
to
Code:
creaturesName.AddRange( creatureName.ToLower().Split(",".ToCharArray()));
this minor change will allow people to pass in a comma delimented list of creatures/items when creating a spawner. (if you wanted to get fancy a .Trim() could be added after the split to remove an excess spaces after the comma). This is compatible with exisiting scripts (backwards compatible) and adds to the core functionality and usefulness of the basic spawner object.
Just my humble thoughts on the matter.