Hello Marcia,

You can't do that with the Odoo normal behavior, however you can do that modifying the base code, there are two methods.

1. You can make a development to inherit the view "Submenu" and remove the class "dropdown-toggle" from the view.
2. With no development you can delete that class by following the next steps:
3. 1. Go to Settings > Developer Tools > Activate the developer mode.
   2. Once the developer mode is activated go to Settings > Technical > Views.
   3. Search the view with the name "Submenu".
   4. In the code, line 9 you will find this

The best method will be always do it with a custom development, but if you can't do that the option 2 would work for you.