1:41 AM, Tuesday September 14th 2021
I would drop using that tool. It is better to learn through your own efforts and that includes creating your own Ys. Better to think them up than copy (it's really not difficult, 4 dots in a Y shape). The tool may also limit what you do in terms of variation and understanding of box size and perspective.
You may feel the tool is helping you cause you have to think less, I think it may be hindering by taking away a significant cognitive step. IMO.