Question:
Is it possible to make changes to an SMP/E CSI that was created by CA CSM or migrated into CA CSM outside CA CSM? If yes, how would these changes be then recognized by CA CSM?
Answer:
Yes, this is possible, from the SMP/E Environment tab, click on the name of the CSI to be resynchronized with CA CSM and then click Refresh.

Additional Information:
Managing SMP/E Environments in CA CSM - CA Chorus™ Software Manager - 6.0 and 6.1 - CA Technologies Documentation