Emily M. 👋 Great question! Upon importing a second or third concept into Figma, your variables will just compound - meaning nothing would get overwritten, you would just be adding new variables to your variables panel over and over. Hope that makes sense. We figured this was better than overwriting as the use case for importing multiple concepts seems somewhat likely, but there's not much else we could really do for this experience so we try not to actively promote it - if that makes sense.