There are 2 main settings tabs that will help you to setup the plugin to work properly.

Network Settings:
In this tab you can enable and disable the available social medias as per your need. Also you can order the apperance of the social medias simply by drag and drop.

For each social media you can

To get the App ID and App Secret please follow the instructions(notes section) for each social profile.
Other settings:

In this tab you can do various settings of a plugin.

Shortcode:

You can use shortcode for the display of the social logins in the contents of a posts and pages.

Widget:

You can use widget for the display of the social logins in the widgets area.

For the complete documentation please visit:
https://accesspressthemes.com/documentation/documentationplugin-instruction-accesspress-social-login-lite/