Which footprint format should I download and how do I import it to my footprint library?  (copy paste into 'New Footprint" designer form?? Altium Circuit Studio Design Spark Eagle Easy PC   (most obvious choice) eCadstar CR 8000/5000 I created one from Mfr's PDF which showed no locating pin hole while Snap Eda's image seems to have one. Would like to try it.