SharePoint app, all users should be able to install app

I've created an SharePoint hosted app (on prem) that uses Search.

I want all users to be able to install the app on the whole site collection, but only the tenant administrator is able to.

I found a fix:

- log into each of your SP servers running IIS

- navigate to: C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15

\CONFIG - edit all the files that start with AppPermissionProvider

- Replace TenantAdmin in all RequiredRight tags with SiteCollectionAdmin

- do an IIS reset

- update the next server

But this only shows how to change to site collection administrators instead of tenant, what if I want to add all users? Is this even possible?