- log in to your Servage account
- go to "Files" and choose "FileManager"
- choose the folder or file for which you want to change the chmode/permissions
- either click on the right mouse button: "Change (chmod) Rights (Folder/Files)" or on the key symbol in the tool bar
- a new window opens and you can selet the owner, group and other permissions
- push the green button "SAVE"
Are you unsure what chmod is the right one for you? Please check e.g. this page for further details about the topic.