John
I will see if the gFortran switch can be included in the project data in a simple way.
I will also check that 'Release x64' is saved. This should already be the case.
I don't know if the ClearWin64 compile and build options can be adjusted. In fact I don't know what this implies. It may already be possible for you to build clearwin64f.dll for yourself, if not then I should be able to provide you with a build script. You would only need this if clearwin64f.dll becomes incompatible with the version of gFortran that you are using.
As I mentioned before, we can't undertake to keep pace with new versions of gFortran. I don't remember all of the details right now but I think that this means that you should either avoid using clearwin64f.dll or that we need to provide you with a means to rebuild it if it becomes incompatible.