We desperately need this feature for our white-label product.
We are currently relying on this plugin: https://www.figma.com/community/plugin/1264578192495051449
But it doesn’t work perfectly and normally a few variables (of hidden layers usually, or variables with transparencies) don’t get swapped properly and we end up having to manually hunt down the elements with unswapped variables and manually select the correct variables. Otherwise, you won’t be allowed to switch to a different mode.
Figma, please add this variable swapping feature ASAP!! Please.