A place where you set up domain of your store, define SSL, may assign default language, currency and warehouse. That is a place for start when you want to create a multistore.
Just after installation a store is created. You may open edit page to set up a proper values, starting with URL.
There is a place to add company details, when you had run installation process you was asked to add details of your company. If had done this before, those details will be visible here. You may edit those if necessary.
Those details will be visible at the public store.
This setting is useful also when you want to setup several stores. GrandNode gives you possibility to run many store from one GrandNode installation. For example you have store with flowers, toys and books, you can manage them from one GrandNode installation.
Description describe the setup of two stores