Tabbed Navigation (Simplified)

Hello Everyone,

I am just trying to implement a Next button in a tabbed navigation form.
I have successfully implemented it with only one problem. The tab that the next button points is not set to active after I press it.

The next button is added as a custom code in a custom block in the form container:

The code is this

<a href="#NAME OF THE TAB" data-g-toggle="tab">ΝΕΧΤ</a>

Can somebody tell me if it is possible to set also the tab as active?

Thanks a lot.

Please lock it I found a workaround by using a floating menu.