Is there a way to export or save only selected vectors?

Please send such a file in to us at support@carbide3d.com or post it here and we’ll do our best to look into this.

Could you see if this re-sizing on double-clicking occurs in the new v5?

If it doesn’t, that’d be great to hear — if it does still occur could you make a video? We’ll put it into the bug reports/feature requests and do our best to see what can be worked out.