Great work

Thank you for this plugin, works great.
There are 2 problems in the new 1.4 version:
If the option Default Open is checked, the page will open with the slide opened as expected, but if you click the title to collapse the slide, the slide will close and open again, only the second click will collapse the slide. It seems like the code considers that all slides are closed, (like it was in the previous version) and when a slide is open by default, the code will open instead of closing the slide.
Second problem:
I choosed the “plus” icon for slides. From my tests in previous version, when a slide is expanded, the plus icon is automatically replaced with the minus icon.
In 1.4 version, seems like the auto switch between opossite icons is not working, the plus sign will remain unchanged, no matter if the slide is open or closed.
Looking forward for the new release with fixes 🙂

Later Edit:
Just for feedback:
i tested a shortcode for a subscription form inside slide content, and it works, the subscription form is displayed as expected 🙂
Cheers,
Catalin