With Edge Delivery Services we put authoring simplicity and efficiency as priority on top of everything else. We intentionally limit the possibilities authors have to reduce complexity. This leads to less learning efforts and hence enables more authors and fosters democratization of content creation.
Technically this mean that you should not give the authors all options that are possible in the stylesheet, but limit it contextually to what makes sense. This is effectively a list of well-known/well-defined variants at the level of a block or a section (to be set as block option or section style). For example: it is significantly easier for an author to select out of a list of block options (variant-a, variant-b, variant-c) or even combine multiple options (variant-a + fullwidth + text-highlights + right-align-content), than having the authors use an RTE to style text pieces individually.
The RTE is configured per default to support what is available here https://www.aem.live/developer/markup-reference#main-content
See also https://www.aem.live/developer/block-collection/text#notes
If you could share your particular use case, we might give you examples.
