Custom Start/Stop buttons in the jupyter notebook tool bar

[vambavaram]

Is it possible to add custom buttons to the tool bar? We'd like to add a start and stop button to provide extra functionality tied to those interactions.

[DonJayamanne]

Yes it is, have a look at the notebook/toolbar section in package.json of the jupyter extension

            "notebook/toolbar": [
                {
                    "command": "jupyter.restartkernel",
                    "group": "navigation/execute@5",
                    "when": "notebookKernel =~ /^ms-toolsai.jupyter\\// && notebookType == 'jupyter-notebook' && isWorkspaceTrusted && jupyter.kernel.isjupyter"
                },
                {
                    "command": "jupyter.openVariableView",
                    "group": "navigation@1",
                    "when": "notebookKernel =~ /^ms-toolsai.jupyter\\// && notebookType == 'jupyter-notebook' && isWorkspaceTrusted && jupyter.ispythonnotebook && jupyter.kernel.isjupyter"
                },
                {
                    "command": "jupyter.openOutlineView",
                    "group": "navigation@2",
                    "when": "notebookType == 'jupyter-notebook' && config.jupyter.showOutlineButtonInNotebookToolbar"
                },
                {
                    "command": "jupyter.continueEditSessionInCodespace",
                    "group": "navigation@3",
                    "when": "notebookType == 'jupyter-notebook' && jupyter.kernelSource == 'github-codespaces'"
                },
                {
                    "command": "jupyter.notebookeditor.export",
                    "group": "Jupyter",
                    "when": "notebookType == 'jupyter-notebook' && isWorkspaceTrusted"
                },
                {
                    "command": "jupyter.replayPylanceLogStep",
                    "group": "navigation@1",
                    "when": "notebookType == 'jupyter-notebook' && isWorkspaceTrusted && jupyter.replayLogLoaded"
                }
            ],

[vambavaram]

Hey @DonJayamanne, this sounds great! Can you provide documentation for this?

[vambavaram]

and can we use existing icons that you already provide? If so, can you point us to documentation around this as well