I've downloaded the JU Tabs and installed both the plugin and the module. JQuery Easy, as well.
Created 7 articles with just a few-columns-and-rows table in each of them. The tables are not the responsive ones but, hopefully, that problem, I'll resolve later.
Using the "Article ID" option, I loaded the article contents into the corresponding tabs.
It works pretty nicely on my localhost.
Now, I need nested tabs consisting of just two layers.
How to do that?
The administrator has disabled public write access.