Sorry, there is no command for selecting receivers and then doing Calculate>Selected Receivers.
You would have to create a child scenario in which you deleted all except the receivers of interest and then do calculate database receivers for that scenario.
Hope this helps, Roger
PS there is a command select receivers but it seems to select all the receivers.
The command calc receivers lets you choose a named area, etc but only stores results in the database.
If I can find out more, I will post here.
