Hi,
In X-ENTP VX.1 and later, once a design is open in xDX Designer or Xpedition PCB, it is possible to open a second design in "reference" mode without taking a second license. Reference mode opens the design object read-only. For example:
- File > Open - opens the design in edit mode.
- File > Open Reference - opens the design in read-only mode; does not consume a second license.