src/vs/workbench/contrib/welcomeWalkthrough/browser/walkThroughPart.ts/WalkThroughPart/multiCursorModifier
class WalkThroughPart:	private multiCursorModifier() {
		const labels = UILabelProvider.modifierLabels[OS];
		const value = this.configurationService.getValue('editor.multiCursorModifier');
		const modifier = labels[value === 'ctrlCmd' ? (OS === OperatingSystem.Macintosh ? 'metaKey' : 'ctrlKey') : 'altKey'];
		const keys = this.content.querySelectorAll('.multi-cursor-modifier');
		Array.prototype.forEach.call(keys, (key: Element) => {
			while (key.firstChild) {
				key.removeChild(key.firstChild);
			}
			key.appendChild(document.createTextNode(modifier));
		});
	}