You don't need two different versions of the software, one that is easy and one that is powerful. You can have one version that is both easy and powerful. Key concepts here are (1) progressive disclosure and (2) constraints.
See Don Norman's Design of Everyday things.
https://www.nngroup.com/articles/progressive-disclosure/
https://www.nngroup.com/videos/positive-constraints-in-ux-wo...
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