Hi,

To do that, you can remove these on categories. After that, please go to the SNS Megamenu >> Menu Items Manager, find the item ‘Contact’ or ‘Blog’ on the storeview that you are currently using, at the ‘Menu Type *’, set ‘CMS page’, then select the page at ‘CMS Page’
Please see the links http://take.ms/rMA9F for detail.

Thanks,