Hi Gábor.
I'm not sure I understand your question, but If you're asking how to create toolbar with drop down menu:
1. Add context menu to your form and add it some menu items. You can add the menu items in the designer.
2. Add ToolBar to your form.
3. Add a button to your ToolBar. you can Add it through the toolbar properties window (Buttons) property.
4. Set the DropDownMenu of the new Button to the context menu you created earlier.
If this isn't answering your question, please say so…
Regards,
Tamir