In the component Repeat dialog - often a component will not assemble because an Align constraint now needs to be a Mate constraint (or vice versa), forcing you to abandon the Repeat dialog & assemble from scratch.
Add a "Flip Constraint" button to the Repeat Component dialog would fix this.
(we're on WF3 - maybe this is fixed in later revs?)
In the orientation menu to Orient by reference there are two options to reference a vertical axis and a horizontal axis. The users that are adding holes into surfaces are asking to orient the view by using NORMAL axis. Good examples are mounting mirrors to hoods or fairing support brackets on a cab. This is WF5 functionality...so apologize if in Creo 2.0.