focal length for curved mirrors

[alpo-kuusisto]

Could the circular arc and parabolic mirrors have adjustable focal lengths like spherical lenses?
For circular arc perhaps also radius, although it's not that necessary as it can be always assumed to be double the focal length.

And thank you, just amazing simulator!

[ricktu288]

You can create custom parametrization of existing objects (e.g. center/angle/radius for arc mirror) using the "module" feature. See Tools -> Other -> Import modules -> Make custom modules.