Is there a shortcut for "Insert New Checkbox"

Support
1

Operating system

Linux

Joplin version

3.4.12

Desktop version info

Joplin 3.4.12 (prod, linux)

Device: linux, 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
Client ID: 7433847af5fe4e838bf0bba7d2fe7980
Sync Version: 3
Profile Version: 48
Keychain Supported: No
Alternative instance ID: -

Revision: e9a9f68

Backup: 1.4.5
Better Code Blocks: 2.0.1
Conflict Resolution: 1.2.3
Extra Markdown editor settings: 1.11.0
Favorites: 1.3.2
Freehand Drawing: 3.1.0
Heading Navigator: 0.6.2
Inline TODO: 1.9.0
Menu items, Shortcuts, Toolbar icons: 1.1.0
Note list and sidebar toggle buttons: 1.0.3
Note overview: 1.7.1
Note Tabs: 1.4.0
Persistent Editor Layout: 2.2.0
Quick Links: 1.3.2
Quick Note: 1.1.2
Resume Note: 0.4.0
Rich Markdown: 0.16.4
Rich Tables: 1.5.3
Simple Image Resize: 1.5.15
Space Indenter: 0.2.6
Spoilers: 1.0.6
Table Formatter Plugin: 1.2.1
Templates: 3.0.0
YesYouKan: 1.1.3

Sync target

OneDrive

Editor

Markdown Editor

What issue do you have?

I want to create a new checkbox via a shortcut. As there is no option listed in the shortcuts settings, I tried to add it manually via the keymap-desktop.json:

[
  {...},
  {
    "command": "insertDateTime",
    "accelerator": null
  },
  {
    "command": "editor.checkbox",
    "accelerator": "Ctrl+Shift+T"
  }
]

Sadly to no avail.
Is there a handle to set a shortcut for inserting a new checkbox, a new bullet or numbered list, and other editor toolbar buttons?

Thanks in advance!