Your Articles #1 template works similarly as your Articles #4 layout, with a couple of changes:

• Will only display Articles that have the parent category of "Altitude" added
• Child categories are optional, but will control the "category" filter
• Adding a link to the "External Link" field will link the user to an outside URL rather than sending them to the article detail page on your website if they click on the article they want to check out
• If there is no external URL added, then the article will link to the article detail page on your website

To add a new Article, go to Content > Articles > Add a new Article