Automatic Ceiling Sketch?

[DaveP]

We've been having a discussion in the office lately about the best way to do Ceilings
We've pretty much got consensus that Sketching using Lines or Rectangle is better than Automatic.
Sketch is perhaps not as quick to slap them in as Automatic, but tends to cause less issues later when the Walls are edited.

But then the thought struck me: "Why not both?"
Is there any way to "explode" and Automatic Sketch?
It would be really slick if you could use the Auto tool to search out the bounding conditions, but then NOT have the lines locked to the walls.

[Twiceroadsfool]

I stopped using Automatic Sketch so long ago, that i dont remember if it works, BUT: If you Auto sketch, then edit sketch, then touch the lines, they MIGHT disassociate from the walls. Other sketched items behave like that, in some cases.

But i dont use Auto sketch. Especially when you factor in that i model some ceilings out of Roofs (Roof by Footprint with Shape Editing for multi-direction slopes, like pyramidal orcanted soffits), Roof by Extrusion for custom ceiling elements described based in section, Roof By Footprint (Sloped Glazing) for Lay in ceilings where seeing the Grids as actual elements is a requirement, or when the Lay-in panels arent flat (Coffered or stamped tiles).

Just seems easier (for me) to avoid Auto Ceiling, especially since it doesnt love interacting with Linked Files, in my experience.

[cellersick]

...If you Auto sketch, then edit sketch, then touch the lines, they MIGHT disassociate from the walls.

I have long avoid automatic sketch for this reason - it's not apparent what is automatically linked to what, and when (or what) breaks that association. I don't even know how one would go about verifying if something is still "automatically constrained".
...
Just played with the auto ceiling (v2017.2): moving the lines does NOT break the association. The sketch lines you get from the auto ceiling are different from what you can sketch on your own - note the presence of a flip control on each line. If you move the sketch line away from the wall, then hit the flip control, it jumps to the *other* side of the wall. I can't find evidence of this behavior in the Help file.

[cellophane]

Same here. I quit using automatic sketch a while ago for the vast majority of cases. I've had to go back and fix too many ceilings after trying to change walls... I'd rather just do it once and make a few adjustments to the sketch later on rather than needing to replace dozens of ceilings and all the associated stuff that goes with them.

[DaveP]

That's exactly my point, though.
There's nothing wrong with using Automatic to create the sketch, it's the Association that causes the problems after they are created.
If we could use Automatic Sketch just to create the boundary instead of Sketching, but have it NOT be associated, wouldn't that be the best of both worlds?
Quick to create, but doesn't hose up when the walls move.