How to do this? If i enable metric system in blender i can use it in object mode to transform my mesh and it’s correct, but if i enter edit mode it always says my mesh (plane) is 2 meters, because it’s clearly not. How to enable same dimensions in both modes? Thanks.
You must forget about object mode dimensions, always let them be 1. Forget about scaling an unfinished object, simple as that. In edit mode you can change the parameters to whetever you want, don’t alter an object in object mode. I only move objects when they are finished, in object mode. Hope this helps.
I think you need to apply your scale changes. Menu: Object -> Apply -> Scale or press Control-A and choose Scale.