There’s always stuff to explain better, or tools which are not yet documented, any help is appreciated!
Duik is a comprehensive animation and rigging toolset for Adobe After Effects.
It provides the main rigging tools, found in any 3D software, like IK, controllers, and bones, but adapts them to 2D animation in After Effects. With Duik you can rig complex characters and use advanced animation techniques usually used in 3D softwares. If you do not know what “rigging” means, it may be because it is a bit too soon for you to use those tools. Please refer to the section entitled Should I use Duik?.
Duik has plenty of animation tools too - managing keyframes and interpolations, traditional animation, animation exposure… - and automations too, like wiggle, spring, swing, wheel, etc. which allow you to animate more quickly and easily.
Duik also has some other useful tools, such as camera controls, that are not solely tied to animation but can be really useful for both animators and riggers.
Duik’s comprehensiveness and ease of use have made it a script used in numerous movies across the world.