Added a better way to edit the AISplines:
How to use:
1. Right click the Curves.
2. Choose the Export option:
3. Save the file;
4. Open the file in a browser with HTML5 support;
5. Do the editions (you can change manually at the boxes or drag the points the lengths ans sectos are just to see);
6. Click in the button Export at the top of the page;
7. Save the file as *.txt;
8. Go back to BML editor
9. Right click the Curves.
10. Choose the Import option:
11. Choose the txt file saved in the step 7;