Hi brosseau, eh... I'm not sure how well this method could be used... also because it will only work if histrory doesn't get deleted... which might get a long history list for an object... but you can e.g. keyframe the extrude and the other things regarding an object during the modelling process... I have atttached an little example which is done by keyframeing the "tweaks" from the modelling history of a polygon cube... regards Strarup