I will say though that Notepad++ is primarily a “text” editor. So it’s all about character sets, not adding boxes (images). In saying that though if you are wanting a webpage (html) file then Notepad could easily insert the correct html code into a list you already have. So code like:
<form action="/action_page.php"> <input type="checkbox" name="vehicle" value="Bike"> I have a bike<br> <input type="checkbox" name="vehicle" value="Car" checked> I have a car<br> <input type="submit" value="Submit"> </form>
is something that notepad++ could help you with.

Terry