Introduction
Drop-down Menu on Categories is a dynamic effect to display sub-categories laterally when mouse hovers over, somewhat so as to improve user experience.
Pop-up Category Menu
Figure 1 shows the
Drop-down Menu on Categories.

Figure 1 Drop-down Menu
Slide the mouse over one category, and then all the sub-categories, if any, will pop up on the right.
This dynamic menu is configurable under the admin>Templates>
Templates Modules>Categories section.

Figure 2 Categories
- Show Product Count
Set to True, product amount in each category will be shown. - Display Drop Down Menu
Set to True to implement this pop-up dynamic effect. Or you have to click the parent category to have its sub-categories listed right below the mother category, as in TomatoCart versions earlier than v1.1. - Drop Down Menu Effect
There are three effects for choosing: fade, slide, slide & fade. - Drop Down Menu Duration
Set an appropriate value giving a slick and comfortable experience to customers.