Create folder within folder

New user coming from ftp folders to DreamObjects buckets and folders.
In ftp it was simple to insert a new folder within a folder previously created. Create and drag it to where you want it.
I can’t see that it is simple in either S3 or from the DreamObjects control panel. I can’t seem to do it! S3 only offers creation of new bucket (which I don’t want to do), and DO control panel allows you to set up a new folder but you can’t put it where you want it to be in your folder hierarchy.
Am I trying to do something that can’t be done?

OK, I answered my own question.
On your local computer, name the folder (containing the files you want) as you will want it to be named in DO.
Then, in Transmit, drag it onto the folder (where you want it become a sub-folder of) in DO.
i.e. don’t create the folder in DO and then drag the files in.

Just wanted to chime in that you can also create a folder from within the DreamHost Panel. There is an Add Folder button in the object browser when you view objects. Here’s a screen shot