Re: Sorry double post: Images with mousover as default settings:
Hi,
One way is to
(1) create a plugin alias (in the Editing and Plugins panel) to set the defaults that you want
(2) Go to edit a page and click on the Admin Toolbars icon (blue wrench a the top right of the edit area).
(3) Select the plugin you created in the Plugin Tools list and drag it to the top wherever you want it in the toolbar.
Hope that helps!