270e2736_up__University_of_Victoria__BC__Description
[Action] Zoom In (Any Mode)Zoom Out (Any Mode) [Default Shortcuts] Middle Mouse Button, X Shift+Middle Mouse Button, Z [Description] 
Zooms the main view in or out using the currently selected navigation mode (Zoom, Magnify, or Fisheye) described above. To change the navigation mode use the drop down list located in the bottom right corner of the main Shrimp view.
Shrimp User Manual | The CHISEL Group, University of Victoria, BC
Description