First off, thank you soo much for creating such a valuble tool.
When I'm drafting my prospective frames some times I need to know dimensions or angles that are non standard in bikecad. For instance bb to handle bar end. It would be super cool if I was able to have these kind of dimensions "snap" to important/common locations such as the bb or front axle etc. If these dims are locked to those locations and they could change as my model changes that would be extremely useful.
The other idea I had would be a simple guide lines feature, where I could draw a line over my drawing to use as a guide.
Thanks for your time, take care.