burrons for next page and prev page and leave site

HOW TO CREATE A LINK:
https://community.homestead.com/homestead/topics/sitebuilder-plus-anchor-links
Select the text or image > From the image settings or text settings menu select Link > Browse to insert an element from your files or to create an anchor link choose "Another Area on this Page > Click the down arrow to reveal the anchor link choice. Click the Anchor link > You'll see the Anchor Element. Place this element in the desired position on your page.

You can add a link to an image or text using the link options to a URL. Here are instructions on adding links. https://community.homestead.com/conversations/websitebuilder/websitebuilder-link-image/5f2a9b3358180958845e01fe

LINK AN IMAGE:
Select the image > Use Image Setting Menu > Link > You can browse and select the link element or you can Copy the link URL address and insert it into the link command box.
LINK TEXT: Highlight the text and follow the same procedure.

LINK AN ELEMENT ON A DIFFERENT PAGE:
https://community.homestead.com/homestead/topics/what_are_anchor_links_and_how_can_i_use_them
Produce an anchor link for the desired element, save and publish. Using your browser, navigate to the page and select the element. You'll see that the URL has changed to include the element's link address. Copy that URL and paste it in your Settings menu Link command.

CREATE A LINK TO ANOTHER ELEMENT ON A DIFFERENT PAGE: You can select the URL from the address line and paste it into your Link command box. If the image or text on the page has an anchor link, you can select that element and the URL will include that specific element. Using that URL address will target that specific element. For example: Select any element on the page and produce an anchor link for that element. Save and publish. Use your browser, navigate and select that element in your site. You will see that the URL address has changed to include the anchor linked item. Copy that URL and paste that as your target link in your Link command box in Image Settings or Text Settings.
In your builder, you can create a link to a different part of the page by following these instructions: https://community.homestead.com/homestead/topics/what_are_anchor_links_and_how_can_i_use_them#differentpage.

Produce an anchor link for the desired element, save, and publish. Using your browser, navigate to the page and select the element. You'll see that the URL has changed to include the element's link address. Copy that URL and paste it into your Settings Menu Link command.

There isn't a "feature" for that, but when you create buttons you can physically link them to whatever previous or next pages you wish to direct the user to.  Not sure how to accomplish the "leave site" as you don't know which browser they are using, although it would be a good guess just to direct them to Chrome or Google home page. (that link would be a URL link. the others would be linked to pages within your site. 

These instructions work if you're using Sitebuilder Plus. What platform are you using?