Place semi transparent bitmap image as guide
I want to import bitmap, and make it semi transparent to act as a guide for objects below.
(Long description)
I like to mock up ideas in photoshop, then use illustrator for the final version.
I want to place objects in illustrator, so they are the same as the photoshop version, so would like a semi transparent bitmap layer at the top of illustrator, set to semi transparent, then place all my illustrator objects below and use the top semi transparent layer as a guide.