Corridor rebuild after delete target

[kidznok]

Hi,
I tested new worklflow for creating corridors:
I was using xref, set layers to targets and after someone change xref I have to check and set one again some of layers.
Now I try copy from xref polyline to my civil dwg because when I change sth new targetting add polyline automatically.
But... before I copy new polylines from xref i have to delete old in my civil dwg. And when I delete this polyline corridor rebuild so many times. (I have disable rebuild automatic)
How I can deal with it? What I can change to stop corridor when I delete targets?

I'm still waiting when Autodesk put targetting for Xref like this one for polyline in draw...
I was looking for answer with dynamo but I don't know Phyton so...
Is someone have similar workflow?
All best

[kovacsv1]

I think for some stupid reason the whole corridor is rebuilt per deleted target.

For this reason we still try to avoid layer targeting. A workaround for your problem can be to turn all baselines off before deleting the targets so it rebuilds in an instant, and turn them on after pasting the new targets.