Split a custom plugin in to 2 plugins

This must be done and tested on your own WordPress multi-site setup.
please see detailed instructions on attached brief.

I have a (custom made) plugin that set First party cookies on the user's device when they get to any of a WordPress multi-site network’s sub-site.

The cookies will store the following information:
1. The sub-site’s Subdomain. The first part of the sub site’s URL (abc.mynetwork.com)
2. The sub site’s Admin’s Username. (The ones that cannot be changed in WordPress)

The info from the cookies is accessed on the main network’s site.
• The subdomain will be prepopulated in a form, that is placed with a shortcode
• And the info is made available to other plugins

This is all done but have some bugs – (The subdomain is not prepopulated in the form).

I need to Break this plugin into 2 plugins:

The first plugin- Creating the cookies

The first plugin will be separately installed and activated on many subsites of a WordPress network.
This plugin will create the cookies on user's device.

The Second plugin will get and present the info from the cookies

Will be activated on:
• The network’s main site (Not network activated).
• And on deferent WordPress installation (a regular WordPress installation – not a multisite)

This plugin will:
• Look for the cookies created by the first plugin make it available to other plugins.
• Show the surfer information from the cookie on a form
• allow the surfer to change the info
• make all the info available for other plugins

+ I need to Delete the database that the plugin currently has. And make the info available on a new form with a new shortcode