# Interface: Rack data window

The Rack Data Window is used for editing and viewing the data associated with racks, locations and modules. The data is presented in a tree structure. The root of the tree is the station, with nodes for each module. Inside each module is the racks in that module, and inside each rack is the data for that rack's location. To edit a module's data, double click on that module. To edit a rack or a location, click on the arrow next to its module or rack to display it, then double click on that rack or location. |
A window like this one will appear. The window has a set of text blanks for the fields associated with this rack, location or module (you may want to resize the window to make it easier to use). The fields are limited to their associated type, i.e. a row that's a number can only be set to a number. After modifying the row data, hit the "save" button to make the changes final. |
To leave comments associated with a rack, location or module, hit the "comments" button. A window like this will appear. To edit a comment click on it in the list on the left; to leave a new comment type your name and the comment text into the boxes on the right, and then click "add comment". There can be more than one comment by the same author. |
To make a new rack, highlight a module and click the "New Rack" button. A window like this will appear, allowing you to enter the new rack's name and location (only locations in that module are shown). Remember that you will have to edit the properties of this rack before you can use it in a run. The properties of a rack are described here. |

Although a different topology can be used for each run, the default topology is shown here.