From:  Michael Gibson
5759.4 In reply to 5759.3 
Hi mir4ea, yeah so the ones shown in the video where they're looking from a side or front view, you would just go into the Front or Right view to draw your cutting curve for those ones.

Otherwise if you do want to work at just some general angle hopefully those above scripts will help with that, once you trigger it you should then be able to draw in that view-aligned cplane in the 3D view, and also the 2D views will give you a set of views relative to that plane as well.

To restore back to the default cplane right-click on the View > CPlane button or if you want a shortcut key for that put in:

script: /* Reset cplane to default */ moi.view.resetCPlane();

- Michael