Save in the cloud /download in mobility/

Hello everyone,

sorry for my english. I am French. Sometimes technical words might not be the good ones. 

My actual setup is the following : 

- LRclassic on a desktop + Files saved on the harddrive + (backup)

-LRmobile : just to work on the files while they are sync online. 

My questions are the following : 

- while away from home, I would like to import into LRmobile and begin to work. To do this, I import the files with LR mobile. But, I don't understand in this case where are the actual files of the pictures. Are they save online ? when I Go home, how should I download them from the cloud on the desktop with the others one ? 

This question applies to the collection and the original files. 

Second topic : Do some of you use the adobe cloud to save the original files ? When I import the files, I choose the location on the hard drive. How do you select to store them in the cloud ? 

Thank you very much to all of you in advance. 

Anne-Laure