b1 = Listbox(exportselection=0)
for item in families:
    b1.insert(END, item)
b2 = Listbox(exportselection=0)
for item in fonts:
    b2.insert(END, item)
b3 = Listbox(exportselection=0)
for item in styles:
    b3.insert(END, item)
How to select at the same time from two Listbox?