src/vs/workbench/contrib/preferences/browser/preferencesRenderers.ts/SettingsGroupTitleRenderer/showGroup
class SettingsGroupTitleRenderer:	showGroup(groupIdx: number) {
		const shownGroup = this.settingsGroupTitleWidgets[groupIdx].settingsGroup;

		this.hiddenGroups = this.settingsGroups.filter(g => g !== shownGroup);
		for (const groupTitleWidget of this.settingsGroupTitleWidgets.filter(widget => widget.settingsGroup !== shownGroup)) {
			groupTitleWidget.toggleCollapse(true);
		}
		this._onHiddenAreasChanged.fire();
	}