hi karsten,

thanks for continuing to look into this. i'm glad you find prop design easy to use. that was one of my main goals. unfortunately over time the inputs and settings grew. but there wasn't really anything I could do about that. i'll take a look at the file and get back with you. in the mean time. there is a video that covers a few things I forgot to mention the cad issues video. i'm not sure if you seen it or not. it may help to answer your question too. the links for the video is; https://www.youtube.com/watch?v=jNkNNawmfJ0