Log into Symbient Opta and click on the menu options: Projects > Tasks
You will now see a list of existing Tasks.
Open an existing project and click on the Attachments tab.
You will see attachments uploaded previously to the task.
Click the Browse button to select attachments to be uploaded. You can select one or more attachments. Alternatively you can also drag and drop files from the file explorer on the drop area.
The attachment will be stored in the currently selected folder.