Those components do not have simulation models in Multisim. They are there for schematic capture purposes and PCB layout only (for pushing to Ultiboard). You can confirm this when you place the component in the workspace and it shows up as green (which it does).
As a general note, there are three types of components in Multisim, and when you place them in the schematic workspace they show up as a specific colour:
1. Simulation only (BLACK)
2. Footprint only (GREEN)
3. Simulation and Footprint (BLUE)
All three of these component types can be used for schematic capture purposes.