In the Extensions window, search for Meshy Bridge.
Select MESHY BRIDGE, and turn on its toggle.
Optional: Select AUTOLOAD so the extension starts each time you open the app.
When the extension is on, it listens for models from Meshy on 127.0.0.1:5331. If the app is closed or the extension is off, Meshy can't connect to Omniverse.
Each time you send a model to Omniverse or Isaac Sim, Meshy opens the Sim-Ready Properties dialog. In it, you set how the model behaves in a physics simulation: body type, mass, collision, and friction. You can also set the model's real-world height, a semantic class, and an optional Wikidata QCode. For each setting, see Bridge to Omniverse / Isaac Sim.