When creating a new form, add ability to save without publishing (e.g. save as draft)

I believe currently when creating a new form, when saving the form it is immediately published. While I can use tags to limit who it is published to, and I can also immediately unpublish the form (make it inactive) via the list of Forms, the our workflow would be improved and errors would be reduced by having the option to save as inactive from the editing page.

Ideas include a toggle next to the save button, or two save buttons - save as active or save as inactive / save as draft.