The plugin is installed normal way using Joomla extensions manager.
Install the plugin like any other extension.
Show listings? - you can select here where you want to display DJ-Classifieds listings in OSMap component, possible options are (they are self-descriptive):
OSMap Sitemap Settings - This part is OSMap related. You'll find here specific settings for DJ-Classifieds listings, possible options are:
Paddle checkout supporting credit cards and PayPal online payments.
All products purchased on our site are refundable.
Dedicated ticket system for all subscribers.