refactor: workspace/session/item ... ja ja, i know but now it is nailed.

test.json

@@ -0,0 +1,94 @@
+[
+  { "NewWorkspace": "Demo Projekt" },
+
+  { "CreateSession": { "name": "Referenzen", "session_type": "browser" } },
+  {
+    "AddItem": {
+      "session": "Referenzen",
+      "name": "Logo",
+      "kind": "vector",
+      "path": "tmp/pictures/logo.svg"
+    }
+  },
+  {
+    "AddItem": {
+      "session": "Referenzen",
+      "name": "Foto Hintergrund",
+      "kind": "raster",
+      "path": "tmp/pictures/hero.jpg"
+    }
+  },
+  {
+    "AddItem": {
+      "session": "Referenzen",
+      "name": "Handbuch",
+      "kind": "portable",
+      "path": "tmp/pictures/handbook.pdf"
+    }
+  },
+  { "ViewSession": "Referenzen" },
+
+  { "SelectSession": "Referenzen" },
+  { "SelectItem": 0 },
+  "NextItem",
+  "NextItem",
+  "PreviousItem",
+  { "SelectItem": 0 },
+  "MoveItemDown",
+  { "ViewSession": "Referenzen" },
+  "MoveItemUp",
+  { "ViewSession": "Referenzen" },
+  { "MoveItemToIndex": 2 },
+  { "ViewSession": "Referenzen" },
+  { "MoveItemToIndex": 0 },
+
+  { "CreateSession": { "name": "Favoriten", "session_type": "collection" } },
+  { "CreateSession": { "name": "Archiv", "session_type": "collection" } },
+  "ViewWorkspace",
+
+  { "CopyItem": { "from": "Referenzen", "item": "Logo", "to": "Favoriten" } },
+  {
+    "CopyItem": {
+      "from": "Referenzen",
+      "item": "Foto Hintergrund",
+      "to": "Favoriten"
+    }
+  },
+  { "ViewSession": "Favoriten" },
+
+  {
+    "RenameItem": {
+      "session": "Favoriten",
+      "item": "Logo (copy)",
+      "name": "Hauptlogo"
+    }
+  },
+  { "ViewSession": "Favoriten" },
+
+  {
+    "RemoveItem": { "session": "Favoriten", "item": "Foto Hintergrund (copy)" }
+  },
+  { "ViewSession": "Favoriten" },
+
+  { "MoveItem": { "from": "Referenzen", "item": "Handbuch", "to": "Archiv" } },
+  { "ViewSession": "Referenzen" },
+  { "ViewSession": "Archiv" },
+
+  { "CopySession": "Referenzen" },
+  "ViewWorkspace",
+
+  {
+    "RenameSession": {
+      "session": "Referenzen (copy)",
+      "name": "Backup Referenzen"
+    }
+  },
+  "ViewWorkspace",
+
+  { "DeleteSession": "Archiv" },
+  "ViewWorkspace",
+
+  { "SaveWorkspace": "tmp/demo.ws.ron" },
+  { "LoadWorkspace": "tmp/demo.ws.ron" },
+  "ViewWorkspace"
+]