...
Select the first cube.
Node Params > Node > Dynamics > Active rigid body
Node Params > Rigid body > @ mass Mass > 500.0 (see below)
Repeat the steps above for the remaining cubes
...
...
Select the first cube.
Node Params > Node > Dynamics > Active rigid body
Node Params > Rigid body > @ mass Mass > 500.0 (see below)
Repeat the steps above for the remaining cubes
...