The website user backend wants to add a column, please give me a solution! ! ! !

Question

The problem description may not be professional enough, please forgive me! ! ! I downloaded a set of website source code of the Dream Weaver System from the Internet. I wanted to add a column "Article Publishing" in the user backend column. After searching for a long time, I finally found a file named menu.php in a certain folder. After opening it, I found that There is a line of code about publishing documentation. As shown below:

After removing the comment in front of the code, an item will be added to the website user backend bar: As shown:

When you click "Publish Article", a pop-up window prompts "Under Development". This is for sure. This is how the code is written. Then I found some html files in a templets directory and found that the file index.html also contained a code about "article publishing". After removing the previous comments, the "Under Development" dialog box also popped up. As shown in the picture: The problem is that I am a novice. How do I click to pop up the article publishing window? Is the original code blocking the relevant statement code or something else? Please ask all the great immortals for guidance. Or any master can show me the idea