Activate a VBProject

I know VBE.ActiveVBProject is a read-only property.
In command window, by entering "VBASTMT" and "Msgbox VBE.ActiveVBProject.Name", I always get the name of latest-loaded project.
Is it possible to activate one of the loaded projects to become the ActiveVBProject programmatically?

 

Why would you want or need to do this?

VBE.ActiveVBProject.Name", I always get the name of latest-loaded project.

ActiveVBProject programmatically?

 

Well, I have declared some public functions in a module.
Such as :
Public Function addAtoB(Byval intA As Integer, Byval intB As Integer) As Integer
addAtoB=intA+intB
End Function

If the project with that function is the ActiveVBProject, I can use the function from VBASTMT and it works.
Such as:
Msgbox AddAtoB(2004,2005)

But if I load another project later, a error message will show :
"Syntax Error".

Any suggestion?