No. For privacy reasons we do not allow the downloading of our video tutorials.
Yes, but this feature has not been released yet. The public plugins API, and related documentation, is planned and we will make a special announcement about this soon. Stay tuned!
Once we allow the use of plugins, these types of functions will become available. If you have any cool ideas for SelfCAD, please send us your suggestions directly to firstname.lastname@example.org. We might even create the first plugin based on your recommendation!
Yes. Plugin support is in the plan for future enhancements. In fact, our developers designed SelfCAD with this functionality in mind from the outset. We will post an update regarding the support of plugins on our blog soon.