Hello,
i think you cannot set multiple messages from same object, but you can set a message with
many value, i.e. if you want that your object send cursor x and cursor y, you can make

iannix.execute(“setMessage current 20, osc://130.237.238.247:7770/scene/lightlidx ” + index + ” cursor_value_x” + ” cursor_value_y”);

this will send: index, cursor x value, cursor y value

Hope helpful although my english,
ciao,
francesco.