People already have the skills to draw, write, sculpt, arrange, etc.
If additional information or tools are necessary to permit such interaction, such as object handles, then design them so that they don't significantly interfere with the user's ability to see the whole creation. Sometimes it is easier to let the tool do certain mechanical jobs, such as precise layout, repetitive tasks, complex geometric shapes, image or sound processing, etc. Interaction History allows the user to see how they've modified the artifact lately, and to roll back to a previous version if they wish. Sovereign Posture is often used with this pattern, because these kinds of artifacts usually require sustained attention and a non-trivial learning curve. All rights reserved.