Login to the CMS.
In the tree menu, click on 'Configuration'.
In the grid, click on 'Navigation'.
Go to the 'Language' navigation tab.
In the field 'Heading' add the language of the current site. e.g. English.
At the field, 'Heading Icon/Image', use the media picker to enter an icon or image. e.g. a flag associated with the language set above.
At the label, 'Navigation' add links, text and icon/image for each of your other languages.
Step 8 a
Click 'Add Link' and from the slide-out panel use the fields and/or content tree to create a link. Click 'Submit' in the bottom right of the panel once you're happy.
Step 8 b (Optional)
Click 'Add Icon' to add an optional icon. Use the slide-out panel to choose which icon. Click 'Submit' in the bottom right of the panel once you're happy.
Step 8 c (Optional)
Reorder using the icon '+' to the left-hand side of each item then drag the item to the desired position.
Click 'Save and Publish'.
This functionality is not available out of the box with our 1.x themes. Please reach out if you have any questions.