Here is a list of all global scoped Magento system configuration settings found in EE 1.14.0.1. Please let me know if I missed anything. The goal is this list is to show you what can't be changed at a website level.
GLOBAL scoped configs:
- Category Flat Index
- Product Flat Index
- Price and Stock Index
- Category Permissions
- CMS Page Hierarchy
- CMS Versioning
- Customer:
- street_lines
- prefix_show
- middlename_show
- suffix_show
- dob_show
- taxvat_show
- gender_show
- Store Credit Functionality
- Customer Segment Functionality
- Gift Card General Settings
- Scheduled Import/Export File History Cleaning
- Store Invitations Functionality
- Default Product Price
- Automated Email Reminder Rules
- Reward Points Functionality
- Orders, Invoices, Shipments, Credit Memos Archiving
- Rule-Based Product Relations
- Priority for Duplicated URL Keys
- Admin Notification
- Scheduled Backup Settings
- Enable CAPTCHA in Admin
- Use Flat Catalog Category
- Use Flat Catalog Product
- Catalog Price Scope
- Use Static URLs for Media Content in WYSIWYG for Catalog
- Decrease Stock When Order is Placed
- Display Out of Stock Products
- Manage Stock
- Backorders
- Maximum Qty Allowed in Shopping Cart
- Qty for Item's Status to Become Out of Stock
- Minimum Qty Allowed in Shopping Cart
- Notify for Quantity Below
- Automatically Return Credit Memo Item to Stock
- Enable Qty Increments
- Qty Increments
- Translate Inline for Admin
- Countries Options - European Union Countries
- Mail Sending Settings
- Set Return-Path
- Return-Path Email
- Storage Configuration for Media
- Media Storage
- Select Media Database
- Environment Update Time
- Admin
- Admin User Emails
- Forgot Password Email Template
- Forgot Password Email Sender
- Recovery Link Expiration Period (days)
- Startup Page
- Use Custom Admin URL
- Custom Admin URL
- Use Custom Admin Path
- Custom Admin Path
- Security
- Add Secret Key to URLs
- Login is Case Sensitive
- Session Lifetime (seconds)
- Allow Magento Backend to run in frame
- Allow Magento Frontend to run in frame
- Dashboard
- Enable Charts
- Web
- Add Store Code to Urls
- Auto-redirect to Base URL
- Secure
- Use Secure URLs in Admin
- Offloader header
- Session Validation Settings
- Validate REMOTE_ADDR
- Validate HTTP_VIA
- Validate HTTP_X_FORWARDED_FOR
- Validate HTTP_USER_AGENT
- Cron
- Customers
- Share Customer Accounts
- Online Minutes Interval
- Default Value for Disable Automatic Group Changes Based on VAT ID
- Generate Human-Friendly Customer ID
- Recovery Link Expiration Period (days)
- Currency Setup
- Webservicex - Connection Timeout in Seconds
- Scheduled Import Settings
- Currency
- Installed Currencies
- Postal Code is Optional for the following countries
- States Options
- State is required for
- Display not required State
- Log Cleaning
- OAuth
- Product Alerts Run Setting
- Reports
- Dashboard
- Year-To-Date Starts
- Current Month Starts
- Sales - Dashboard
- Use Aggregated Data (beta)
- Promotions - Auto Generated Specific Coupon Codes
- Sitemap - Generation Settings