Describe the bug

I am not sure if this is a bug or a desired feature. I am building a rocket with a large ring fin supported by 4 canted fins from the main body tube. The main body tube and the ring fin have a common axis of rotation.

1. As far as I could determine, OpenRocket 22 does not allow this type of fin configuration.
2. The pattern for the canted fins prints with a straight line for the root attached to the main body tube but this should be a parabolic section. I worked out the math for the intersection and set up a spreadsheet that allows me to change the cant angle and radius of the body tube. I was able to 'correct' the OpenRocket fin pattern. I would be glad to share my work if you are interested.

To Reproduce

1. Add BT60 nose come of any type then add a BT60 body tube.
2. Add trapezoidal fins with a 15 cm root and a 5 degree cant angle.
3. Print the fin pattern and you will note the root is straight instead of a mild parabola.
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Screenshots / .ork file

Screenshot(s):

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.ork file:

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OpenRocket version

22.02

What platform are you running on?

Windows

Additional context

No response