On-page Anchors
The "Jump to" links in Construct are hard-coded in-page links that appear if content is published in the corresponding portion of the page. For example, the Navigation link will only be visible if a module is published in the nav position.
The code used in Contruct for this link is:
<?php if ($this->countModules('nav')) : ?>
<li><a href="/<?php $url->setFragment&'nav'); echo $url->toString();?>" class="to-nav">Navigation</a></li>
<?php endif; ?>>
Add your own in-page links by duplicating and modifying this code appropriately, and by adding the corresponding anchor tag that would be in place of nav after $url->setFragment('nav');
Removing the in-page links is accomplished by deleting their corresponding code from your layout override.
