add drop-down-menus for colon-delimited specimen/samples/sites/locations columns
add drop-down-menus for colon-delimited specimen/samples/sites/locations columns
Caoimhinmg/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,lfairchild/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy