Feature Request: Support for R Notebook equivalent

Currently it seems that to render a Quarto document all of the code needs to be rerun. Are there plans to add something similar to R Notebooks, which just use the last output from the chunks (In Rstudio this is accomplished with the "Preview" button when using an R notebook)? This can be nice for longer analyses or more interactive exercises where you may want to edit a plot or a later section but don't need to rerun all the earlier parts.

Start by reviewing how Quarto renders documents and how the linked R Notebook workflow uses existing chunk output. The feature would be complete when a document can use prior chunk results for later edits without rerunning all earlier code, including for longer analyses or interactive exercises.