This is probably the easiest way you will ever find to have tabs or an accordion in concrete5.
Create and use tabs anywhere as a block. Each tab is its own block, and therefore simple to edit.
Multiple types of contents in each tab, your limit is only dictated by your blocks.
This add-on works in a native way with concrete5. No coding is required to enable any functionality. It's as simple as: create a Stack, add blocks to the stack, go to the front, and the tabs block where you want it and there you go, tabs!