Hi i need build custom article template with slide feauture images and text. Should I build a new template like mytemplate-post.php ?
In a recent theme I'm working on, I needed a specific post template, like you. I have created a post template (following this tutorial) and, in this post template, I have added the Uikit component I needed and changed the output via Beans API. So, yes, it is absolutely possible and very easy to do.
Have a nice day,