diff --git a/.gitignore b/.gitignore
index 078841d..0d22318 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 docs/build/
+.vscode
\ No newline at end of file
diff --git a/skel/Desktop/simulated-drone/sim_drone.py b/skel/Desktop/simulated-drone/sim_drone.py
index b3cd37e..7630aa0 100755
--- a/skel/Desktop/simulated-drone/sim_drone.py
+++ b/skel/Desktop/simulated-drone/sim_drone.py
@@ -134,7 +134,7 @@ def start(sys_id: int = 1):
 
 
 @app.command()
-def start_group(count: int):
+def start_group(count: int = typer.Argument(min=1, max=10)):
     """Start a group of robots"""
     for i in range(count):
         logger.info(f"start robot {i}")