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I picked up another project that uses a (way) different foundry technology and thought I'd read in the layout and get the layers table prettied up. But I found that all of my previous project's layers were "sticky" if not over-written, still hanging around. There's a good bit of difference between "5um" JI analog, and 12nm FinFET....
Is there a good way to "shake the Etch-A-Sketch" and get rid of all previous technology data (not just the layout, but all of the technology related "stuff")? Maybe while keeping the non-technology-specific, user interface settings? A "soft reset" script perhaps?
Sticky is good when you only work on one thing at a time. I'd like to segregate the jobs' technology stuff somehow, or at least keep them from touching each other.