Thank you very much for feedback.
- I'll fix this, thank you;
- Buttons will be do something
![pfft pfft](images/smilies/pfft.gif)
I just didn't implement it yet
- As above, I have some issues with roots, so I remove this options from demo for now, I forgot to remove this from context menu.
- Make sense, I'll make it all Deg.
- I didn't had any crash recently and I test it a lot, maybe it depends of value of some options, I'll investigate this.
Thanks again for your time and opinion ^^ This project is still far from I want to accomplish, but I hope it will be useful soon.