You may either use {{Coordinator-note}} by itself for the default message or you may add a teachdaireachd gnàthaichte as an optional parameter. Note that you must include a non-breaking space before the text in the first parameter.
Et cetera. Note, if you're using parameter 2 (the part that changes the colon) and not parameter 1 (to change note to notes, or whatnot), you need to include 2= before it, or it will count it as parameter 1.
Any of the following inline, comment-level templates can be converted into {{Resolved}}-style hatnotes by using {{Resbox}} to put a box around the icon and text.
{{enUici|Wikipedia:List of discussion templates|List of discussion templates]], a more linear table of essentially the same set of templates
Template:Resolved/See also, the smaller family of thread-level hatnote templates, similar to the above but with a box around them; any template above can be converted to one of those with {{Resbox}}