Welcome to the Opticks Extras project. This project houses a number of extra extensions for Opticks that are officially supported by the same community that supports Opticks. To see the extensions available in the Extras project, see the listing below.
If you have questions about Extras or the extensions provided by the Extras project, you should discuss them in the usual communication channels for Opticks. So,
Read IDL Tips for pointers on how to use the IDL extension.