Upload the bt-keyboard-shortcuts folder to /wp-content/plugins/.
Activate the plugin via Plugins in WordPress.
Go to Settings (under the plugin on the Plugins page) to configure display and CSS.
Plugins page: BT Keyboard Shortcuts with Settings link
Inserting shortcuts in the editor
In the block or classic editor, use the formatting dropdown and choose Insert keyboard shortcut to open the shortcut dialog.
Editor dropdown with Insert keyboard shortcut option
In the Keyboard shortcut dialog, check modifier keys (Win/Alt/Shift/Ctrl/Fn), enter the main key, and use the generated shortcode. Click Insert to add it to the content.
Keyboard shortcut dialog with modifiers and generated shortcode
Settings
Under Settings → Keyboard Shortcuts (or via the plugin’s Settings link), you can:
Display: Show + separator (e.g. ⌘+⌥+S), use modifier symbols (⌘⇧⌥⌃) vs text, use symbol entities for keys (Tab, Return, etc.), and choose Mac or Windows symbols and names.
Custom CSS: Override default styling for .btkbd keyboard keys. Changes update the preview below.
Keyboard Shortcuts settings: Display options and Custom CSS with preview
You can also use symbol shorthand in the shortcode: $ (Shift), @ (Command/Win), ~ (Option), ^ (CTRL). For example, [kbd @$p] renders as ⇧⌘P.
Modifier keys are automatically rearranged to match the order recommended by Apple in their Human Interface Guidelines (e.g. ⌃ ⌥ ⇧ ⌘ before the key), regardless of the order you type them.