For King and Parliament has rules for “Forlorn Hopes”, small bodies of shot told off to hod davancwe positions or difficult terrain; Each would have 2 bases of 2 figures.
Single bases could also be used to indicate “attached shot” use by some Horse regiments.
The singly mounted officers can be used to represent foot Colonels or “Gallant Gentlemen”.
Never let spare figures go to waste – especially for a Scot! 