To manage files in Glasscubes, go to the Files tab in the relevant Workspace. Then you can either select an individual file to manage or the whole folder. And it will give you options to choose from when you click on the ''options'' or ''select action'' button depending on how you choose to manage the file.
When you click on an individual file, click on the Options button on the far right side of the file list and it will provide a drop down menu of all the things you can do such as copy, move etc.
And when you want to manage a whole folder/file you click on the tick box at the top of the list which says ''select action'' and it will select every file and you can untick the ones you want to leave out.
And a drop down menu will appear once you click on ''select action''
Remember this list of what's available will apply to all the files and folders you have selected at the time, so be careful what you click!