| Name | N | Name | Text |
| Elem Mass | M | If this item is True then element self mass is included in the mass | Boolean |
| Mass Mass | M | If this item is True then assigned masses are included in the mass | Boolean |
| Lateral Mass | L | Include Lateral Mass | Boolean |
| Vertical Mass | V | Include Vertical Mass | Boolean |
| Lump Mass Story | S | Lump Lateral Mass at Stories | Boolean |
| Mass Centroid Adj | C | Toggle to allow the adjustment of Diaphragm Lateral. Ratios set below | Boolean |
| Move X Ratio | X | The ratio of Diaphragm Width in X direction | Number |
| Move Y Ratio | Y | The ratio of Diaphragm Width in Y direction | Number |
| Struct Load Patterns | P | Struct Load Patterns | Generic Data |
| Load Factors | F | Load Case Factors | Number |
| Is Default | D | Set mass source as default for mass source for modal load cases. Only one can be nominated as default | Boolean |