I want to download more models and worlds in https://app.gazebosim.org/fuel, but I can only download them one by one.Is there any solutions to download these fuels by just on click or select click
You can download e.g. whole collections:
gz fuel download -v 4 -j 8 --type model -u "https://fuel.gazebosim.org/1.0/OpenRobotics/collections/SubT Tech Repo"