1. Go to Logic->PartlogicOriginally posted in cdnusers.org by kishore
2. Select the component on the working window that you would like to change. The component would be highlighted in the parts list table.
3. On the Class tab, change the class from either of the available "IO" or "DISCRETE" or "IC" class and then hit modify.
4. Apply and then say OK.
5. Your component class is now modified.
I am not sure if there are any skill routines to perform this operation, but would be interested to see if anyone else has.