I'm not sure how or if you can remove Orca from the software, but as for the buttons, you need to go to admin panel and then to page builder and remove them from there. Like home page/Members Accounts...ect..ect Then try the menu builders as well. Most of this can be done from admin section. Don't be afraid to play with it, you can always put the blocks back. When I first started using this software, i had 2 sites up. One to play with and the main site for my members. And as always "BACK UP" always make a mysql back up of all before trying new things.
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