This little Fieldtype add a dropdown for selecting a MSM site. This way you can create a MSM site where the content editor can select on which site the content is visible.
Remove the old module files (both system and themes)
Place the new files in the right folders
Navigatie to the module page and trigger the update proces, by clicking on the "module update" buttondule page and trigger the update proces, by clicking on the "module update" buttonoces, by clicking on the "module update" button