Powerful, extensible and customizable tool!

Thank you for super great base plugin! It’s easy for end users to configure basics and use/manage locations. Paid add-ons (Pro Pack and Enhanced Map) are worth each cent.

Inline documentation is pretty good for developers, but should be updated. Online documentation for developers can also be better.

For example, [slp_option] shortcode has been registered in method render_shortcode (file class.ui.php), and invoke method create_string_slp_option_value, where is nested apply_filters hook shortcode_slp_option. Unfortunately, that hook does not work, so to add custom labels for bubble/results layout, I had to utilize filter slp_shortcode_atts. But after all, it works nice!

Keep up great work!