Json List import as Alias

[Marv21]

Hello together,
Iam new to OPNsense, but was a long time PFsense user.
The biggest thing iam missing is ofcourse the PFblocker Package.
Anyways, now iam using Proxmox with OPNsense and a PiHole. I nearly imported all Aliases i need with the IP Table Alias, but the "https://ip-ranges.amazonaws.com/ip-ranges.json" i cant get to work.
With Pfblocker it was just a Add and voila. How can i accomplished this?
I tried the search, but didnt find anything  - maybe i just didnt use the right keywords.

Thanks in Advanced.