Hello @koogar,
The Corporate Pro child theme modifies the portfolio titles so they appear on top of the featured images when hovering over them. If you’d like to display the titles beneath the image instead, you’ll need to customize the theme’s code. For assistance with this, you may reach out to the SEO Themes (the developer of Corporate Pro theme) support team here: https://seothemes.com/support/
To display text beneath the featured images on the portfolio archive page requires adding custom code to the theme. For assistance with this, you can post a question in the StudioPress forums at https://studiopress.community.
Also, there isn’t a shortcode available for adding the portfolio archive to an existing page. However, you might try adding a widget area to the existing page and then adding the Genesis Portfolio widget to the new widget area.
Here’s a tutorial that shows how to add a widget area to a page: https://www.nutsandboltsmedia.com/how-to-add-a-widget-area-to-a-page-using-genesis/
And here’s an article that shows how to configure the Genesis Portfolio widget: https://my.studiopress.com/documentation/genesis-portfolio-pro/plugin-usage/genesis-portfolio-widget/ (You’ll need to be logged into your My StudioPress account to access this.)
Please let me know if you have any questions.