Open the Module menu and select the Upload Module menu item:
Click the Upload Module button.
A file chooser dialog is opened. Select a local ZIP file containing a module to upload and then click Open.
The ZIP file is uploaded to the host where the Pineapple web client is running. The file is then unpacked into the module directory on the host where the web application is running.
Result
The result after executing the steps are:
A local module archived as a ZIP file has been uploaded to the host where the Pineapple web application is running.
The module archive has been unpacked into the local module directory.