Hi Jerry,
Yes, you check out all three files. When you are ready to check-in, you run a program to recreate each text file. Something like this for each folder and each type.

* Forms.
IF ADIR(aFiles,m.dir2Boost + '*.scx','',1) > 0
   FOR x = 1 TO ALEN(aFiles,1) 
      IF ADIR(aTmp,FORCEEXT(m.dir2Boost + aFiles(m.x,1),'SCA'))=0 OR NOT 'R' $ aTmp[1,5]
         DO (_scctext) WITH m.dir2Boost + aFiles(m.x,1)
      ENDIF
   NEXT
ENDIF
* ClassLibraries.
IF ADIR(aFiles,m.dir2Boost + '*.vcx','',1) > 0
   FOR x = 1 TO ALEN(aFiles,1) 
      IF ADIR(aTmp,FORCEEXT(m.dir2Boost + aFiles(m.x,1),'VCA'))=0 OR NOT 'R' $ aTmp[1,5]
         DO (_scctext) WITH m.dir2Boost + aFiles(m.x,1)
      ENDIF
   NEXT
ENDIF

Then I compare the VCA's using DiffMerge. At that point I almost always see one more thing I need to do. Modify the class, DO b.prg, and compare again. Now, maybe it's ready to check-in.
There's a better version of SCCText.PRG to use as well.

>If I check out a SCX and SCT, do I also check out the SCA? Do I check them all back in again?
>
>Thanks,
>
>Jerry
>
>