Copy app zip to SD

Run WinSCP.

To copy the zip, navigate to the PC directory with the app files zip on the left and to the /home/pi/ on the right.

Mark all the files on the left.

Drag them into the right panel or click "Upload' in the upper left corner.

Confirm the operation.

The zip file will appears in the right panel, copied to the SD card in S2GW.