Continuing the discussion from Joining Vectors:
This is really well done!
Of course, if your design has interior sections they’ll fall out if you cut it - but making use of the Premium Outline tool allows you to have the exterior lines you need, which can then be Joined, and you can use the original pieces as scores 
The interface is getting fancier and fancier!
I my opinion this is the single best addition to the Glowforge interface in quite a while! (Yes, there have been several great improvements lately; this is just the one that I find the most useful to have.)
It certainly is one that will be used repeatedly. Unfortunately I dont seem to have had it added to my premium membership yet. Is it going to be rolled out gradually?
From the main thread:
While there’s a chance you’re on the very end of the roll-out, keep in mind it doesn’t show up unless you have multiple vectors selected. Hopefully it was just hiding on you
Thank you