Sorta. But back then you couldn't define any constraints yourself. The only thing the user could add was dimensions, you had to trust in Proe to assume the things you wanted.
Want two lines perpendicular? Sketch them close to perpendicular, hit regen and cross your fingers that Proe caught that they were pretty much perpendicular and added that constraint. No way to explicitly tell Proe to make them perpendicular like you can now. It took real skill to get the constraints that you wanted.