First of check this:

http://laravel.com/docs/5.0/configuration#accessing-configuration-values

and then this:

http://laravel.com/docs/5.0/packages#configuration

I've considered it, but how I read it seems that I can't append to a sort of array config. When merging configurations you need to define the path. I was looking for something that based on some code / array could dynamic pick it up dynamic. Without DB record writing...

It sounds like you just need to use a global variable like $_SESSION (Session:: or session()) to have the modules talk to each other. This wouldn't work if you are trying to use that data across multiple users/sessions, but that sounds like what you're asking.

Some pointers of interest:

• Storing a Value in the IoC Container
• Arrays on steroids

Try to be specific to receive more attention, your post is too broad.