during installation rhapsody asks for the eclipse path... this path information (onyl one...) is stored in the ini file. Whenever you lauch the eclipse integration services Rhapsody is refrering to that information....
so in principle you can only connect to one eclipse environemnt in Rhapsody (create eclipse configuration, import from eclipse, navigate to eclipse etc .... from Rhapsody) - looks like that there is some place for improvment of the tool
In order to change the desired eclipse envionment you can change the ini file before Rhapsody start-up
In my case for example I've added several eclipse environemnts under IDE. The one you want to use is uncommented (n #-sign)
Rhapsody.ini
[IDE]
#EclipsePath=C:\WindRiver\workbench-2.6\wrwb\platform\eclipse\x86-win32\bin\wrwb.exe
#EclipsePath=d:\windriver\workbench-2.4\wrwb\2.4\x86-win32\bin\wrwb.exe
#EclipsePath=C:\Program Files\QNX Software Systems\Momentics\IDE4\eclipse\qde.exe
EclipsePath=c:\Eclipse\eclipse.exe