Selective cell execution restricted to cell metadata tags

[rodsenra]

Use Case:
Not always "Run all", "Run all above", "Run all below" suffice for executing useful subsets of cells in a notebook. Sometimes the user wants to execute cells that are scattered across the same notebook because they share some semantics but are not physically adjacent.

Desired Feature I:
It would be interesting to be able to execute (top-to-bottom) a subset of cells that share the same given tag. That would allow different execution workflows while leveraging the existent cell tag infrastructure.

Desired Feature II:
Execution of all cells within a section or subsection (in between Heading 1,2,3) may be also useful.

[krassowski]

Execution of all cells within a section or subsection (in between Heading 1,2,3) may be also useful.

This is already possible in JupyterLab 3.x from sidebar Table of Contents context menu.