Adding or removing point when editing spline

Hi Joseph,

Thank you again for sharing the video. It is useful trick which I should be able to use. I’m actually just want to reconfirm that we can’t do this or if I missed another tutorial for this app.
On the arms of points, I guess I’m just used to use vector app and hope to be able to do the same in Shapr3D. Below is screenshot of what I’m trying to do.

image image

Regards,