diff --git a/conversion_widget.ipynb b/conversion_widget.ipynb
new file mode 100644
index 0000000000000000000000000000000000000000..b0fbe7566afef28b0241534de947116f7fd13466
--- /dev/null
+++ b/conversion_widget.ipynb
@@ -0,0 +1,357 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 35,
+   "id": "0680c4c1-3b25-4a86-a58a-4feefdf92df5",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "/home/aaristov/miniconda3/envs/nd2/lib/python3.8/site-packages/napari_tools_menu/__init__.py:179: FutureWarning: Public access to Window.qt_viewer is deprecated and will be removed in\n",
+      "v0.5.0. It is considered an \"implementation detail\" of the napari\n",
+      "application, not part of the napari viewer model. If your use case\n",
+      "requires access to qt_viewer, please open an issue to discuss.\n",
+      "  self.tools_menu = ToolsMenu(self, self.qt_viewer.viewer)\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "opening /home/aaristov/Anchor/Lena/Data/E.coli/Ciprofloxacin/20220827-ecoli-cipro/day1/TRITC.nd2\n",
+      "{'P': 6, 'Z': 31, 'Y': 7138, 'X': 22543}\n",
+      "No channels, {'P': 6, 'Z': 31, 'Y': 7138, 'X': 22543}\n",
+      "[6, 31, 7138, 22543] 6\n"
+     ]
+    }
+   ],
+   "source": [
+    "from napari import Viewer, run\n",
+    "from napari.layers import Image, Layer\n",
+    "\n",
+    "from qtpy.QtWidgets import QWidget, QVBoxLayout, QLabel, QComboBox, QPushButton\n",
+    "\n",
+    "from magicgui.widgets import create_widget, Label\n",
+    "\n",
+    "from matplotlib.backends.backend_qtagg import (\n",
+    "    FigureCanvas, NavigationToolbar2QT as NavigationToolbar)\n",
+    "from matplotlib.figure import Figure\n",
+    "\n",
+    "\n",
+    "class SamplePlugin(QWidget):\n",
+    "    def __init__(self, viewer: Viewer):\n",
+    "        super().__init__()\n",
+    "        self.viewer = viewer\n",
+    "        self.select_image = create_widget(label=\"BF\", annotation=Image)\n",
+    "        self.select_mask = create_widget(label=\"mask\", annotation=Layer)\n",
+    "        self.canvas = FigureCanvas(Figure(figsize=(5,5)))\n",
+    "        self.ax = self.canvas.figure.subplots()\n",
+    "\n",
+    "        self.ax.plot([0, 5, 6], [2, 7, 14])\n",
+    "        \n",
+    "        self.dims = []\n",
+    "        \n",
+    "        ll = QLabel()\n",
+    "        ll.setText('BF')\n",
+    "        self.mm = QLabel()\n",
+    "        self.mm.setText('mask')\n",
+    "        \n",
+    "        self.btn = QPushButton(\"Add operation\")\n",
+    "        self.btn.clicked.connect(self.add_op)\n",
+    "        \n",
+    "        self.layout = QVBoxLayout()\n",
+    "        self.layout.addWidget(ll)\n",
+    "        self.layout.addWidget(self.select_image.native)\n",
+    "        self.layout.addStrut(1)\n",
+    "        self.layout.addWidget(self.mm)\n",
+    "        # layout.addWidget(self.select_mask.native)\n",
+    "        # layout.addWidget(self.canvas)\n",
+    "\n",
+    "        self.setLayout(self.layout)\n",
+    "    \n",
+    "    def reset_choices(self, event=None):\n",
+    "        self.select_image.reset_choices(event)\n",
+    "        self.select_mask.reset_choices(event)\n",
+    "        \n",
+    "        self.dims.append(viewer.layers[self.select_image.current_choice].data.shape)\n",
+    "        \n",
+    "        self.mm.setText(str(self.dims[-1]))\n",
+    "        \n",
+    "        self.combo = QComboBox()\n",
+    "        self.combo.addItems(['max_projection', 'split_dims', 'export'])\n",
+    "        self.combo.currentIndexChanged.connect(self.choose_op)\n",
+    "        self.layout.addWidget(self.combo)\n",
+    "        self.layout.addWidget(self.btn)\n",
+    "    \n",
+    "    def choose_op(self, i):\n",
+    "        print(f'{i} selected: {self.combo.currentText()}')\n",
+    "    \n",
+    "    def add_op(self):\n",
+    "        op = QLabel()\n",
+    "        op.setText(self.combo.currentText())\n",
+    "        self.layout.addWidget(op)\n",
+    "        \n",
+    "        combo = QComboBox()\n",
+    "        combo.addItems(map(str, self.dims[-1]))\n",
+    "        self.layout.addWidget(combo)\n",
+    "        \n",
+    "        qdim = QLabel()\n",
+    "        self.layout.addWidget(qdim)\n",
+    "        self.dims.append(rm_dim(self.dims[-1], combo.currentText()))\n",
+    "        combo.currentIndexChanged.connect(lambda: qdim.setText('Output shape: ' + str(self.dims[-1])))\n",
+    "        \n",
+    "    \n",
+    "\n",
+    "\n",
+    "\n",
+    "viewer = Viewer()\n",
+    "\n",
+    "plugin = SamplePlugin(viewer)\n",
+    "\n",
+    "viewer.window.add_dock_widget(plugin)\n",
+    "\n",
+    "run()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 33,
+   "id": "9d844484-94ab-4979-b4ac-8c9d8063d957",
+   "metadata": {},
+   "outputs": [
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+       "dask.array<_dask_block, shape=(6, 31, 7138, 22543), dtype=uint16, chunksize=(1, 1, 7138, 22543), chunktype=numpy.ndarray>"
+      ]
+     },
+     "execution_count": 33,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "viewer.layers[plugin.select_image.current_choice].data"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 32,
+   "id": "4ffc2f5f-fd24-4a0f-a496-6d1437919f07",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[31, 7138, 22543]"
+      ]
+     },
+     "execution_count": 32,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "ll=[6, 31, 7138, 22543]\n",
+    "ll.remove(6)\n",
+    "ll"
+   ]
+  },
+  {
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+   "id": "83479001-943b-49e1-9f47-8bf1c7d09a7b",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
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