Tutoral how to add new command in the menu under an existing category

[pacospace]

Problem

I'm working on a jupyterlab-extension for dependency management [1]. Some users requested feature to delete kernels directly from the UI, instead of going to the terminal, so the following solution was introduced:

I did not find a way to add the new command Kernel Delete... to the menu under Kernel, as I think that should be the place.

Proposed Solution

• Have an example on how to add command to menu on existing category.

Additional context

• [1] https://github.com/thoth-station/jupyterlab-requirements

[NoobMaster1999]

I want to solve this issue. Can anyone please assign me the issue..???

[fcollonval]

Thanks for proposing your help. I'm unsure this requires a new example. The launcher example is adding an entry to the File>New submenu:

extension-examples/launcher/src/index.ts

Line 88 in 92e0814

menu.fileMenu.newMenu.addGroup([{ command }], 30);

Basically you have to use the accessors of IMainMenu. Moreover in JupyterLab 3.1 a new mechanism to define menu from settings has been introduced. The menu example will be updated in #181.

if you want to help, I can provide you some pointer for #111, #134, #138 or #154.

[pacospace]

Thanks @fcollonval !!