diff --git a/LeStorage/Store.swift b/LeStorage/Store.swift
index 1ff5bf5..61ee424 100644
--- a/LeStorage/Store.swift
+++ b/LeStorage/Store.swift
@@ -8,6 +8,11 @@
 import Foundation
 import UIKit
 
+public enum ResetOption {
+    case all
+    case synchronizedOnly
+}
+
 enum StoreError: Error {
     case missingService
     case unexpectedCollectionType(name: String)
@@ -133,18 +138,28 @@ public class Store {
         }
     }
     
-    public func disconnect(resetAll: Bool = false) {
+    public func disconnect(resetOption: ResetOption? = nil) {
         try? self.service().disconnect()
         self._settingsStorage.update { settings in
             settings.username = nil
             settings.userId = nil
         }
         
-        if resetAll {
+        switch resetOption {
+        case .all:
             for collection in self._collections.values {
                 collection.reset()
             }
+        case .synchronizedOnly:
+            for collection in self._collections.values {
+                if collection.synchronized {
+                    collection.reset()
+                }
+            }
+        default:
+            break
         }
+        
     }
     
     public func hasToken() -> Bool {
diff --git a/LeStorage/StoredCollection.swift b/LeStorage/StoredCollection.swift
index 0eb65db..cce280a 100644
--- a/LeStorage/StoredCollection.swift
+++ b/LeStorage/StoredCollection.swift
@@ -19,6 +19,7 @@ protocol SomeCollection: Identifiable {
     func deleteApiCallById(_ id: String) throws
     func reset()
     func loadDataFromServerIfAllowed() throws
+    var synchronized: Bool { get }
 }