For creating RBE2s or RBE3s the best way is probably to use Utilities / FEM-General / RBE2/RBE3 Spider. This will allow you to simply pick a surface or face (or other options) and automatically create the RBE.
For the general case you can use the List function under Tools/List/Create. Select the options FEM/Node/Association and (e.g.) Surface in the list box, and it will create a list of all the nodes associated to that surface. You can use the selected nodes in any other application region by typing the shortcut `lista` or `listb` (depending which list you saved them into).
For creating RBE2s or RBE3s the best way is probably to use Utilities / FEM-General / RBE2/RBE3 Spider. This will allow you to simply pick a surface or face (or other options) and automatically create the RBE.
For the general case you can use the List function under Tools/List/Create. Select the options FEM/Node/Association and (e.g.) Surface in the list box, and it will create a list of all the nodes associated to that surface. You can use the selected nodes in any other application region by typing the shortcut `lista` or `listb` (depending which list you saved them into).
