As it is not possible to retrieve the logo files directly from the computer, you must first upload them.
Start by going to :
Enter the Saas user and password again.
Click on upload a new file:
Click on upload a file :
Get the file :
Click on Done.
It is ready for ujse.
Go normally to the format editor, click on the image insertion icon.
It will prompt :
Select the desired file and proceed as usual.
When it is done, do not forget to delete the file in the loading screen if it is not needed elsewhere:
(Screen layout may differ a little bit but the actions are the same)