The Horizontal or Vertical Checkbox Category Selector feature is available for WPSLP Premier or MySLP Enterprise level subscription customers. The checkbox works with an “OR” selection based on the Parent category. With Premier or Enterprise you will see additional category selectors under the Settings/Search/Category section. For example : If you check the  red and  blue boxes on the category selector it will show any location in the red OR blue category.
The category button bar is a category selection interface available to WordPress Premier and MySLP Enterprise subscribers. This feature is enabled under the Store Locator Plus menu select Settings | Search | Appearance | Category Selector.
The button bar will show clickable links that display the icon and category name for the category which will filter locations that match. The styling for the display will vary based on which plugin style you select. Currently the Bennett style from our Settings/View /Gallery CSS is configured to appear when you have an active Premier or Enterprise subscription.
Functionality is based on a single-category selection. Clicking a new category will turn off all other categories.
The map center, either the Center Map for initial map loading or the address a user entered, is retained as is the initial or current radius. The map will zoom in-and-out to show all locations that match within the radius of the center point.
Shown is the button bar using the Bennet Gallery plugin style on a modified version of Exists theme deployed on the Bennet Trim Tabs site. This video is on our development servers.
Store and Category Manager interface is available if you have the Power Add-on installed (for WPSLP users) or have the MYSLP Professional level or higher. You will see a tab “Categories” in your Store Locator Plus User Interface.
Once you open the Category Tab you can begin to add categories and slugs. Set Markers and Icons per category (optional) if you want those to appear in place of map markers. A Bulk action drop down to delete some or all categories is also available.
You can choose to show the categories that you have created in a drop down menu as part of the search form. There are additional category selector options available for WPSLP premier subscribers or MYSLP Enterprise subscribers (example see Checkbox selector). You can add text as a label that will display at the top of the categories drop down menu, or you can leave blank. You can also add text for the category select box that will appear in front of the category drop down on the user interface.
Hide Empty Categories Setting
For WPSLP Power add-on users . Do NOT turn this on unless you have Pages enabled.