Originally Posted by
Iznogood
You are correct! May I just add that VNAV SPD descent is available only if your aircraft is equiped with SPD INT on the MCP, but the functionality is exactly like LVL CHG.
SPD INT is not always required.
There is the "SPEED" option on 6R of the Descent page, which takes you to the SPD DES page.
The required speed is entered via the FMC, because of the lack of SPD INT on the MCP.