diff --git a/dist/index.js b/dist/index.js
index 2138ddcd..f38f6229 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -261,6 +261,9 @@
   function stringify(data) {
     return JSON.stringify(data);
   }
+  function parse(string) {
+    return JSON.parse(string);
+  }
 
   // src/Model/connectionModel.ts
   var ConnectionModel = class {
@@ -327,4 +330,72 @@
   document.querySelector("main").append(
     /* @__PURE__ */ createElement("div", { class: "flex-column" }, /* @__PURE__ */ createElement("input", { "bind:value": addressInput }), /* @__PURE__ */ createElement("button", { "on:click": connect, "toggle:disabled": isConnected }, "Connect"), /* @__PURE__ */ createElement("button", { "on:click": disconnect }, "Disconnect"), /* @__PURE__ */ createElement("hr", null), /* @__PURE__ */ createElement("span", { "subscribe:innerText": connectedAddress }))
   );
+
+  // src/Model/storageModel.ts
+  var StorageModel = class {
+    storageEntryTree = {};
+    // basic
+    store = (directoryNames, key, value) => {
+      const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+      localStorage.setItem(unifiedPath, value);
+      this.updateTree(...directoryNames, key);
+    };
+    restore = (directoryNames, key) => {
+      const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+      return localStorage.getItem(unifiedPath);
+    };
+    remove = (directoryNames, key) => {
+      const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+      localStorage.removeItem(unifiedPath);
+    };
+    list = (...directoryNames) => {
+      let currentParent = this.storageEntryTree;
+      for (const directoryName of directoryNames) {
+        currentParent = currentParent[directoryName];
+      }
+      return [...Object.keys(currentParent)];
+    };
+    // array
+    storeArray = (directoryNames, key, value) => {
+      const valueString = stringify(value);
+      this.store(directoryNames, key, valueString);
+    };
+    restoreArray = (directoryNames, key) => {
+      const valueString = this.restore(directoryNames, key);
+      if (!valueString) return null;
+      const parsed = parse(valueString);
+      if (!Array.isArray(parsed)) return null;
+      return parsed;
+    };
+    // init
+    constructor() {
+      for (const key of Object.keys(localStorage)) {
+        const directoryNames = this.keyToDirectoryNames(key);
+        this.updateTree(...directoryNames);
+      }
+    }
+    // utility
+    updateTree = (...pathParts) => {
+      let currentParent = this.storageEntryTree;
+      for (const pathPart of pathParts) {
+        if (!currentParent[pathPart]) {
+          currentParent[pathPart] = {};
+        }
+        currentParent = currentParent[pathPart];
+      }
+    };
+    directoryNamesToKey = (...directoryNames) => {
+      return directoryNames.join("/");
+    };
+    keyToDirectoryNames = (key) => {
+      return key.split("/");
+    };
+  };
+
+  // src/index.tsx
+  var storageModel = new StorageModel();
+  console.log(storageModel.list("a"));
+  console.log(storageModel.list("b"));
+  console.log(storageModel.list("b", "c"));
+  console.log(JSON.stringify(storageModel.storageEntryTree, null, 4));
 })();
diff --git a/src/Model/storageModel.ts b/src/Model/storageModel.ts
index dadae642..35775ae8 100644
--- a/src/Model/storageModel.ts
+++ b/src/Model/storageModel.ts
@@ -2,43 +2,93 @@
 
 import { parse, stringify } from "../utility";
 
-// keys
-export enum storageKeys {
-    // current
-    socketAddress = "v2-socket-address",
+export default class StorageModel {
+  storageEntryTree: StorageEntry = {}; // basic
+  store = (directoryNames: string[], key: string, value: string): void => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    localStorage.setItem(unifiedPath, value);
+    this.updateTree(...directoryNames, key);
+  };
 
-    // settings
-    userName = "v2-user-name",
-    firstDayOfWeek = "v2-first-day-of-week",
+  restore = (directoryNames: string[], key: string): string | null => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    return localStorage.getItem(unifiedPath);
+  };
 
-    // history
-    previousAddresses = "v2-previous-addresses",
-    previousObjectCategories = "v2-object-categories",
-    previousObjectStatuses = "v2-object-statuses",
-    previousObjectFilters = "v2-object-filters",
-}
+  remove = (directoryNames: string[], key: string): void => {
+    const unifiedPath = this.directoryNamesToKey(...directoryNames, key);
+    localStorage.removeItem(unifiedPath);
+  };
 
-// basic
-export function store(key: string, value: string): void {
-  localStorage.setItem(key, value);
-}
+  list = (...directoryNames: string[]): string[] => {
+    let currentParent = this.storageEntryTree;
+    for (const directoryName of directoryNames) {
+      currentParent = currentParent[directoryName];
+    }
 
-export function restore(key: string): string | null {
-  return localStorage.getItem(key);
-}
+    return [...Object.keys(currentParent)];
+  };
 
-// array
-export function storeArray(key: string, value: any[]): void {
+  // array
+  storeArray = (directoryNames: string[], key: string, value: any[]): void => {
     const valueString = stringify(value);
-    store(key, valueString);
-}
+    this.store(directoryNames, key, valueString);
+  };
 
-export function restoreArray(key: string): any[] | null {
-    const valueString = restore(key);
+  restoreArray = (directoryNames: string[], key: string): any[] | null => {
+    const valueString = this.restore(directoryNames, key);
     if (!valueString) return null;
-    
+
     const parsed = parse(valueString);
     if (!Array.isArray(parsed)) return null;
 
     return parsed;
-}
\ No newline at end of file
+  };
+
+  // init
+  constructor() {
+    for (const key of Object.keys(localStorage)) {
+      const directoryNames = this.keyToDirectoryNames(key);
+      this.updateTree(...directoryNames);
+    }
+  }
+
+  // utility
+  updateTree = (...pathParts: string[]) => {
+    let currentParent = this.storageEntryTree;
+    for (const pathPart of pathParts) {
+      if (!currentParent[pathPart]) {
+        currentParent[pathPart] = {};
+      }
+
+      currentParent = currentParent[pathPart];
+    }
+  };
+
+  directoryNamesToKey = (...directoryNames: string[]): string => {
+    return directoryNames.join("/");
+  };
+
+  keyToDirectoryNames = (key: string): string[] => {
+    return key.split("/");
+  };
+}
+
+// types
+export type StorageEntry = { [key: string]: StorageEntry };
+
+// keys
+export enum storageKeys {
+  // current
+  socketAddress = "v2-socket-address",
+
+  // settings
+  userName = "v2-user-name",
+  firstDayOfWeek = "v2-first-day-of-week",
+
+  // history
+  previousAddresses = "v2-previous-addresses",
+  previousObjectCategories = "v2-object-categories",
+  previousObjectStatuses = "v2-object-statuses",
+  previousObjectFilters = "v2-object-filters",
+}
diff --git a/src/index.tsx b/src/index.tsx
index a38c48d0..eecb96e6 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -1 +1,5 @@
 import "./View/maintenance";
+
+import StorageModel from "./Model/storageModel";
+
+const storageModel = new StorageModel();
\ No newline at end of file