I’ve tried using other plug-ins like shortcode ultimate and wp ui and use a jquery spoiler button, but they conflict with your tabs shortcodes.

In you accordian, when you click anywhere in the content portion it just closes the accordian. In a normal JQuery accoridian the header area controls the open/close. Basically, you can’t add anything that requires a click or entry (like a form) to your accordian. Anyway to turn the close off when you click accordian tab content?

You could edit your common.js :

$(".acc_item").click(function(){

$(this).siblings().children(".accordion_content").not($(this).find(".accordion_content")).slideUp(600,'easeInOutExpo');
$(this).siblings().children(".accordion").not($(this).find(".accordion")).removeClass("active_acc");

$(this).find(".accordion").next(".accordion_content").slideToggle(600,'easeInOutExpo');

if($(this).find(".accordion").hasClass('active_acc')){
$(this).find(".accordion").removeClass("active_acc");
}else{
$(this).find(".accordion").addClass("active_acc");
}
});

and change the JS events that control the according if you feel like. Another option would be to get a plugin with a different accordion.

Did you manage to solve the issue with the accordion closing when clicked in the content?
If so, what did you update to prevent the accordion from closing, yet being closed when clicked upon the header area?
Thanks in advance for helping me out.
Rgrds,
Willem

Try replacing the above code with this:

$(".accordion").click(function(){
		$(this).parent('.acc_item').siblings().children(".accordion_content").not($(this).siblings(".accordion_content")).slideUp(600,'easeInOutExpo');
		$(this).parent('.acc_item').siblings().children(".accordion").not($(this)).removeClass("active_acc");

		$(this).next(".accordion_content").slideToggle(600,'easeInOutExpo');
		
		if($(this).hasClass('active_acc')){
			$(this).removeClass("active_acc");
		}else{
			$(this).addClass("active_acc");
		}
	});

That did solve just one part of the matter. Thus not being able to close the accordion when clicked in the content. But now also making it impossible to click on any image placed in the content. And that is not what I had in mind. Blocking the accordion from closing is fine, but one should also have the option to resize any image placed in the content. That shouldn’t be that difficult, should it? Any other suggestions to get this realized?

Rgrds,
Willem

How does that disable any events within the content, do you have a URL I can take a look at?