Files section added #13

Author: SebastianPrehn

docs/images/files/files-createfolder.png

@@ -17,6 +17,7 @@ ERDA/SIF: User Guides
    :caption: ERDA User Guides
 
    sections/erda/signup/index
+   sections/erda/files/index
    sections/erda/workgroup/index
    sections/erda/jupyter/index
    sections/erda/networkdrive/index

docs/images/files/files-ready.png

@@ -0,0 +1,42 @@
+.. _erda-files-start:
+
+=====
+Files
+=====
+
+The **Files** app is your main area on ERDA when it comes to data and it's where you manage your personal and shared files.
+The directory tree in the left pane takes you quickly to a specific sub-directory and the right pane shows the files and directories in the current directory.
+
+The location bar right above the two panes shows the path to the current directory with quick navigation links to parent directories.
+
+.. image:: /images/files/files-ready.png
+
+Right-clicking a directory or file brings up a context menu in which you can select common actions on the item that you right-clicked.
+For files the actions include e.g. download, edit and rename.
+For directories you get the choice of e.g. uploading or creating files in-line.
+Right-clicking in the empty space below the entries in the right pane brings up the context menu for the current directory.
+
+You can add new text files in-line with the **Create File** entry from the right-click menu or upload with the **Upload File** entry there.
+The latter opens the upload dialog where you can drag and drop local files from your desktop or click **Add files...** and point files out for upload.
+
+As an example you can select **Create Folder**, enter the folder name *uploads* and click OK. Then double click the new uploads folder to open it.
+
+.. image:: /images/files/files-createfolder.png
+
+Inside the uploads folder you can again right click and now select **Upload File** to open the upload helper. Click **Add files...** to select the files you want to upload.
+
+.. image:: /images/files/files-uploadfile.png
+
+When you are done selecting files for upload you can click **Start upload** to actually upload.
+Wait for them to complete or click **Cancel** if you change your mind.
+
+.. image:: /images/files/files-uploadmenu.png
+
+Finally click **Close** when finished and your uploaded files show up among your other files.
+
+
+Double click files to open them directly in the browser if possible but with fall back to download and open in a suitable local application otherwise.
+In the latter case any changes will only be saved locally and not in ERDA.
+Therefore it is necessary to upload the modified file again in that case.
+
+It is possible to edit simple text files with **Edit** from the right click, but it is recommended to look into our more advanced data access possibilities, such as :ref:`mounting a networkdrive<erda-networkdrive-start>` or :ref:`Seafile<erda-seafile-start>` which makes it easier to work directly on files in your ERDA folder without worrying about the upload step, as it automatically changes the local changes on the ERDA server.