Aperture Tip: Mode Changes

There are five viewing modes in Aperture — Multi, Primary, Three Up, Compare and Stack. You can access them with the shortcuts Opt-U, Opt-R, Opt-H, Opt-O and Opt-T. An easy way to remember those shortcuts? Press the Option key and the second letter of the mode — mUlti, pRimary, tHree up, cOmpare, sTack.