Step 1. : Right Click in Navigator to import the project.
Step 2. : Select "InDesign Plugin development -> InDesign Plugin project".
Step 3. : a ) Give the project name
b ) Give the Mac source folder ( the source folder of the project you want to import, e.g. if you are editing the SDK sample then " Adobe InDesign Products SDK\source\sdksamples\SampleProject"
c ) Give the Mac root FR file. ( it automaticaly show the files in the source folder selected above, select the .fr file from the folder.
d ) Give the Windows source folder.
e ) Give the Windows FR file.
Step 4. : Give the win project & Mac project file. Click Finish. It will show you the UI of the sample project, now you can drag drop the available widgets on the fr at your desired location of your desired size.
Note : you have to give the widget IDs , pluginIds in your SampleProject_ID.h manually