Currently, there are five available gates: Rectange, Polygon, Range, and Quadrant Ellipse

Create Gate

To create a new gate for the current file, selected a gate type from the gating panel. The method to draw a gate differs depending on the type of gate.


Click on the plot to place a vertex of the rectangle. Then drag to draw the rectangle and release to finalize the gate.


Click to place vertices of the polygon. Double click to finalize the gate.


Click on the plot to place a bound of the range. Then drag to draw the range and release to finalize the gate.


Click on the plot to place the center of the quadrants. Release to finalize the gate.


Click on the plot to place one end of the ellipse. Then drag to draw the ellipse and release to finalize the gate.

With the exception of quadrant gates, when a gate is finalized, a popup will appear allowing you to name the new gate.

To create a sub-gate, select a gate to apply it to a file and then draw the new child gate.

Once a gate is created, the stats for the gate will be calculated and displayed. If the gate is a top-level gate, the percentage shown will be the percent of total events that are contained in the gate. If the gate is a sub-gate, two percentages will be shown. The first percentage is percent of total events contained in the gate. The second percentage is the percent of events in the parent gate that are contained in the child gate.

Apply Gate

To apply a gate and mask out all events not contained within it, click the gate name from the file/gate tree.

Delete Gate

In order to delete a gate, right click on the gate and click "Delete". The gate and all sub-gates will be removed. This can not be undone.

Copy Gate

To copy a gate from one file and apply it to a different file, you can drag the gate from the file/gate tree and drop it onto either another file or gate. To do this, the file must have parameters that match the original gate parameters exactly. There is currently no way to manually reconcile parameter names that differ between files.

If you want to apply the gates in one file to all the files in a project, press "Control + A".

When a gate is copied to another file, those gates become linked. Changes to the gate in any file will update the gate in all the files that use it.

Edit Gate

All gates can be edited after they are created. To edit a gate, click on it in the plot. Once it is selected, its vertices will be highlighted. From there, you can drag the gate as a whole to a new position or drag individual to adjust its size and shape. Again, if a gate has been applied to multiple files, all instances of the gate will change when it is edited and statistics will be updated for all files.