How to change KW release from 620 to 630 while creating a project?

Hi,

I want to change he knowledge warehouse from enhancement 620 to 630 while saving a project. But when I do an F4 help at the prompt while saving I am not provided any other option. There is just one entry available for selection.

In SPRO many entries are available like 630 and other. When in Solar01 I select any document assigned at the process level and go to its attributes and try to change the folder even there all the options are available. Only while saving the project when I want to change the release to 630 its not available.

How can I get all the releases for selection?