GL-E750V2C6 - microSD card as network device

Hello,
a couple of days ago I bought GL-E750V2C6 and inserted SIM and MicroSD card. SIM is pretty good working. MicroSD with 512GB seems to be detected because it is shown on the display with the folder-symbol. SD-Card is formatted to exFAT but I cannot find it anywhere inside of Admin-tool. I would like to use this MicroSD as a storage-device in the network.

What can I do, to make it running? Please be so kind to help me.

Best regards
Peter

There is no storage management (like drag'n'dropping folders) inside the GL firmware. And exFAT isn't supported either.

Please refer to Network Storage - GL.iNet Router Docs 4