Quote Originally Posted by simon1066 View Post
In Admin > Configuration > Maximum Values > Manufacturers List - Scroll Box Size/Style

it says: Number of manufacturers names to be displayed in the scroll box window. Setting this to 1 or 0 will display a dropdown list.

Changing that should give you your dropdown.

Edit: that's on ZC v1.56c, I assume there's something similar in ZC v1.57b
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