Cimatron now allows you to reorder features in the History Tree by dragging them up or down. Using this method to reorder features changes the part timeline, so it can have major implications on the design and should be done carefully. But it can also require less reliance on Insert Mode and save the time of deleting wrongly-ordered features. To prevent failures or regeneration problems, reorder was created with certain rules already in place. For example, the cursor will show a blocked sign if you are trying to move a feature ahead of its parent feature. Moving a child feature like an extrude up the tree will also move the parent sketch.