PSCS5 – Command Option (Mac) / Control Alt (Win) + H has always hidden extras such as selection edges, Grid and Guides. Now, when you first use the shortcut, Photoshop will give the option to choose whether to hide extras or hide Photoshop making it easier to choose OS-standard behavior on the Macintosh. In order to define what is an “extra” choose View > Show > Show Extra Options and select from the list.
To set Photoshop’s Grid to display an overlay showing the “Rule of Thirds” choose Preferences > Guides, Grid & Slices. Set the “Gridline every:” to 100% and the “Subdivisions” to 3.
You can use the Create Plane tool in Vanishing Point to create a perspective grid. Then, use the small drop down menu next to the Edit Plane tool to select Render Grids to Photoshop. While creating the perspective grid, holding down the X key and clicking in the image temporarily zooms the clicked location to 2x.
Use Preferences / Guides, Grid & Slices to control the Style, Color, and Grid line spacing and subdivisions. Yes, this means that guides can be a soothing neutral gray, not Cyan or Magenta!
To quickly display rulers at the top and left of an image, click the View Extras icon in the new Application Bar in Photoshop CS4 and select Show Rulers from the drop down menu, or use the keyboard shortcut, Command (Mac) / Control (Win) + R to toggle the rulers visibility. Command (Mac) / Control (Win) + “;” toggles the visibility of guides and Command (Mac) / Control (Win) + ‘ toggles visibility of grids.
