Feature request: Run all cells

[pykong]

I believe a command to run all cells in their order of occurrence paralleling that of the Jupyter Notebook is vital. I believe I speak for all users of this neat little package if I claim that manually selecting and individually triggering the run of each cell is cumbersome.

Most Jupyter notebooks I am working on feature at least a dozen of cells.

[SamiPirbay]

I think you can select multiple cells and run them.

So Select All (Ctrl+A), then Run Cell