private static void UpdateActiveToolSetting(Book.Book book, string toolName, bool enabled)
{
var tools = book.BookInfo.Tools;
var item = tools.FirstOrDefault(t => t.ToolId == toolName);
if (item == null)
{
item = ToolboxTool.CreateFromToolId(toolName);
tools.Add(item);
}
item.Enabled = enabled;
}