Add ability to set user defaults suite

README.md

@@ -106,6 +106,13 @@ Zephyr.debugEnabled = true // Must be called before sync(_:)
 Zephyr.sync()
 ```
 
+**Use a specific `UserDefaults` suite**
+```swift
+if let suite = UserDefaults(suiteName: "group.com.example.app-name") {
+  Zephyr.setUserDefaultsSuite(to: suite)
+}
+```
+
 ### Sample App
 
 Please ignore the Sample App as I did not add any demo code in the Sample App. It's only in this repo to add support for Carthage.

Sources/Zephyr.swift

@@ -278,6 +278,15 @@ private extension Zephyr {
 
     }
 
+  /// Set Zephyr to use a different UserDefaults suite than `.standard`.
+  ///
+  /// - Parameters:
+  ///     - to: A `UserDefaults` suite.
+  public static func setUserDefaultsSuite(to suite: UserDefaults) {
+      shared.userDefaults = suite
+      printStatus(status: "Updated UserDefaults suite.")
+  }
+
 }
 
 // MARK: - Synchronizers