There are several ways to modify an existing gate. To change one of the vertices, select a gate, and then simply click on the vertex and (while holding the mouse button down), drag it to a new location. (Rectangular gates compute much faster).

You can modify the rectangular and polygonal gates by clicking on them and moving the little squares on each vertex.

If you want to move the entire gate, click anywhere in the middle of a selected gate (the mouse will look like a four-way arrow), and drag it to the new location. For finer movement, select a gate and use the arrow keys on the keyboard to move the gate one pixel in the direction of the arrow key.

Note that you can select multiple gates (by shift-clicking on several gates) and move them altogether--either by dragging them or using the arrow keys.

As soon as a gate is moved, FlowJo automatically recomputes the number of events in the gate. In addition, any graphs that rely on the gate you have moved (for instance, if you have a different window that displays the data for that gate) will be automatically updated as you move the gate. [not yet implemented in Layout Editor]

If you press the delete key while a gate is selected, FlowJo will delete the gate.