I am currently collaborating with two others on a small project.  I addition to a lot of 3D modeling, we are also producing 2D drawings (plans, elevations, sections, details) for permitting, shop drawings, etc..  So that we can all work simultaneously, we have created a file for each drawing type (one file for the flooplan, one for elevations, one for sections, and so on).  We have been linking between these files (for example, the floorplan is linked into the electrical plan file).  We have…See More

The extend command will only automatically extend a curve to the first intersection with the boundary object; subsequent extensions are done dynamically.  See below. Ideally in the example below, each additional click would extend the line to the next intersection with the spiral.  I am an architect, and this is based on how I would like to use the extend command and how it works in AutoCAD.  (I should add that I have all but totally abandoned AutoCAD and have been doing all drafting and…See More