How do I create an admin tab in a plugin?

1.

External Link
for this Step

We are going to assume that you know how to create a “Hello World” plugin. Go to your plugin editor and click edit next to Hello World.

2.

Check the box labelled “plugin uses admin side”.

3.

At the top of the plugin code place this code:

if(@txpinterface == 'admin') {
	register_tab("MainTabName", "event_name", "Tab-Name");
}

4.

Click on one of the tabs in the main tab menu, then click on the Extensions tab. You will now see the tab you just created in the sub-tab menu.