*Sources
*Observables
[[Image:Newproj.png|thumb|450px|EM.Cube's New Project Dialog.]]
[[Image:Units.png|thumb|250px|EM.Cube's Units Dialog.]]
[[Image:Freq.png|thumb|350px|EM.Cube's Frequency Dialog.]]
[[Image:Savedata.png|thumb|350px|Saving a project's simulation data into a subfolder.]]
=== Main Window ===
Before you start the new project, you can change its name to anything you would like. Simply type in a new name to replace the default "UntitledProj1". From the new project dialog, you can also set the project length units. The default option is millimeter. For computational modules, you need to set the operational frequency. The dialog lets you select the frequency unit, which is Gigahertz (GHz) by default. You can set the project's center frequency and bandwidth. Once you have changed all the settings, click the {{key|Create}} button to make the changes effective.
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[[Image:Newproj.png|thumb|left|600px|EM.Cube's New Project dialog.]]
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Previously saved projects can be opened using the menu item '''File → Open Project...''', or by clicking the '''Open''' [[File:Open.png]] button of the System Toolbar. If you are in a different project that has been modified, and your changes have not been saved yet, a warning message will appear asking you whether you want to save the current project before opening another project. Once the standard Windows open dialog pops up, you can browse the Windows Explorer and locate any project you wish to open. You have to open the project folder and select the project file with a ".PRJ" file extension.
You can clean up your project folder at any time through '''Menu → Simulate → Delete All Data Files''' All Data Files or by right clicking on the Data Manager item in the Observables section of the Navigation Tree and selecting Delete All Data Files. In order to preserve your simulation data, you have to save them in a different folder other than the project folder. One way is to create a subfolder in your project folder. The contents of subfolders are not deleted at the start of a simulation. To save the data in a project subfolder, select '''Menu → Simulate → Save Data As...''' or right click on the Data Manager item in the Observables section of the Navigation Tree and select Save Data As... This opens up the Save Data dialog with the default subfolder name "Simulation Data" in your current project folder. You can choose the default subfolder name and location or change the name or browse to another location on your hard drive.
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[[Image:Savedata.png|thumb|left|500px|Saving a project's simulation data into a subfolder.]]
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== Changing EM.Cube's Visual Settings ==