Put container controls and windows into a module

I have many container controls and windows that all pertain to specific modules.

At the moment I have them in separate folders to keep them organized, however, this only works for the navigator. Many of them all have the same name, but different parent module. This means I have to create really long names for each item to have any idea where it comes from and not have naming conflicts.

Is there any way to namespace items like container controls and windows in the form of SomeModule.SomeSubModule.SomeContainer instead of SomeModuleSomeSubModuleSomeContainer?

Thanks!

i remember if me used a class in a created folder i can wrote foldername.classname into a property somewhere else.

Have tried a bunch of things, I believe that folders are only part of the navigator and project save structure. As far as the compiler goes, they are invisible.