diff --git a/src/vstarstack/tool/clean.py b/src/vstarstack/tool/clean.py
index c2b97c36..e219e653 100644
--- a/src/vstarstack/tool/clean.py
+++ b/src/vstarstack/tool/clean.py
@@ -15,7 +15,6 @@
 import os
 
 import vstarstack.tool.common
-import vstarstack.library.common
 import vstarstack.tool.cfg
 
 def run(project: vstarstack.tool.cfg.Project, _argv: list):
diff --git a/src/vstarstack/tool/debayer.py b/src/vstarstack/tool/debayer.py
index 3c188609..35c3aa4d 100644
--- a/src/vstarstack/tool/debayer.py
+++ b/src/vstarstack/tool/debayer.py
@@ -74,5 +74,6 @@ def _process(project: vstarstack.tool.cfg.Project, argv: list):
                       project.config.paths.npy_orig,
                       project.config.paths.npy_fixed)
 
-def run(project: vstarstack.tool.cfg.Project, argv: list):
-    _process(project, argv)
+commands = {
+    "*": (_process, "debayer image", "input/ output/"),
+}
diff --git a/src/vstarstack/tool/process.py b/src/vstarstack/tool/process.py
index 49fe76f1..d506168f 100644
--- a/src/vstarstack/tool/process.py
+++ b/src/vstarstack/tool/process.py
@@ -17,51 +17,38 @@
 import vstarstack.tool.usage
 import vstarstack.tool.manage_project
 
-import vstarstack.tool.config
-import vstarstack.tool.image
 import vstarstack.tool.clean
-import vstarstack.tool.readimage
-import vstarstack.tool.merge
-import vstarstack.tool.debayer
-import vstarstack.tool.stars.stars
-import vstarstack.tool.cluster
-import vstarstack.tool.shift
-import vstarstack.tool.image_processing.fixes
-import vstarstack.tool.fine_shift.fine_shift
-import vstarstack.tool.objects.objects
-import vstarstack.tool.calibration
-import vstarstack.tool.analyzers.analyzers
 
 commands = {
-    "readimage": (vstarstack.tool.readimage.commands,
+    "readimage": ("vstarstack.tool.readimage",
                   "read source images to npz"),
-    "debayer": (vstarstack.tool.debayer.run,
+    "debayer": ("vstarstack.tool.debayer",
                 "debayer RAW images"),
-    "image-process": (vstarstack.tool.image_processing.fixes.commands,
+    "image-process": ("vstarstack.tool.image_processing.fixes",
                   "image-process - make optical fixes and other image fixes"),
-    "calibration": (vstarstack.tool.calibration.commands,
+    "calibration": ("vstarstack.tool.calibration",
                     "calibration - flats, darks"),
-    "objects": (vstarstack.tool.objects.objects.commands,
+    "objects": ("vstarstack.tool.objects.objects",
                 "commands for processing images with compact objects " +
                 "(planets, diffractions, etc)"),
-    "stars": (vstarstack.tool.stars.stars.commands,
+    "stars": ("vstarstack.tool.stars.stars",
               "commands for processing stars images"),
-    "cluster": (vstarstack.tool.cluster.commands,
+    "cluster": ("vstarstack.tool.cluster",
                 "command for cluster processing"),
-    "shift": (vstarstack.tool.shift.commands,
+    "shift": ("vstarstack.tool.shift",
               "move and rotate images to match them"),
-    "merge": (vstarstack.tool.merge.commands,
+    "merge": ("vstarstack.tool.merge",
               "merge images", "input_dir/ output.npz"),
     "project": (vstarstack.tool.manage_project.run,
                 "configurate project"),
 #    "planets": (vstarstack.targets.planets.planets.run,
 #                "commands for processing planets"),
-    "image": (vstarstack.tool.image.commands,
+    "image": ("vstarstack.tool.image",
               "image processing (show, convert, etc)"),
     "clean": (vstarstack.tool.clean.run,
               "remove temporary files"),
-    "fine-shift": (vstarstack.tool.fine_shift.fine_shift.commands,
+    "fine-shift": ("vstarstack.tool.fine_shift.fine_shift",
                    "fine shift images"),
-    "analyzers": (vstarstack.tool.analyzers.analyzers.commands,
+    "analyzers": ("vstarstack.tool.analyzers.analyzers",
                    "analyze images"),
 }
diff --git a/src/vstarstack/tool/usage.py b/src/vstarstack/tool/usage.py
index 1433bc86..44e24862 100644
--- a/src/vstarstack/tool/usage.py
+++ b/src/vstarstack/tool/usage.py
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2022 Vladislav Tsendrovskii
+# Copyright (c) 2022-2024 Vladislav Tsendrovskii
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -13,6 +13,8 @@
 #
 
 import os
+import importlib
+
 _PRGNAME = "vstarstack"
 
 def complete_path_in_dir(dirname : str | None, prefix : str):
@@ -80,6 +82,10 @@ def autocompletion(commands : dict, argv : list):
                 if isinstance(command, dict):
                     """Go to subcommand completion"""
                     return autocompletion(command, argv[1:])
+                elif isinstance(command, str):
+                    """Go to subcommand completion"""
+                    loaded_submodule = importlib.import_module(command)
+                    return autocompletion(loaded_submodule.commands, argv[1:])
                 else:
                     return autocomplete_files(argv[1:])
 
@@ -135,5 +141,12 @@ def run(project, argv, base, commands, message=None):
         else:
             new_base = cmd
         run(project, argv[1:], new_base, submodule, message)
+    elif isinstance(submodule, str):
+        if len(base) > 0:
+            new_base = base + " " + cmd
+        else:
+            new_base = cmd
+        loaded_submodule = importlib.import_module(submodule)
+        run(project, argv[1:], new_base, loaded_submodule.commands, message)
     else:
         submodule(project, argv[1:])