| Returns | PropertyRow |
| Prototype | Properties:Add(string name) |
| Description | No description |
| Returns | PropertyRow |
| Prototype | Properties:Add(string name, string value) |
| Description | No description |
| Returns | PropertyRow |
| Prototype | Properties:Add(string name, PropertyBase) |
| Description | No description |
| Returns | PropertyRow |
| Prototype | Properties:Add(string name, PropertyBase, string value) |
| Description | No description |