[SDK] [Simulator] In MicroEJ SDK, I can not view my front panel design when I double click on my platform .fp file

Open the .fp file.
Go to: Window->Show View->Other...->MicroEJ->Front Panel Preview.
This will open a new window near the console with a preview of how is rendered your .fp file.
You can live-edit the .fp file and see the changes in this view.