@Anonymous wrote:
So there is no way to recover from pressing Activate Component? or it is so complex that one needs to understand the whole component concept to do that?
The component concept is at the very core of Fusion 360. Each Fusion 360 design is already a component. A component is a container for all those things that contribute to the design of the discrete part. Sketches, construction planes, axis, solid bodies, surface bodies etc.
If your design contains more than a single discrete part, then those parts should become individual coponetes as soo as it makes sense.
To ensure that the "stuff" actually goes into the right folder in a given component (bodies folder, sketch folder, etc) , you activate a component and when you add, say, a sketch to a component it will end up in that components sketch folder.
When you want to work in another component you can simply activate that. Modifying the geometry of an existing component often does not require you to activate it. Fusion 360 is smart enough to understand to associate a fillet feature with the component the body is placed in that you filleted.
Are you familiar with Fusion 360's R.U.L.E #1 ?
Just to be clear, if a design contains only one discrete part, for example to be 3D printed, you don't need to create a new component. Each fusion 360 file starts as a component.