If the user has selected a set of atoms, the hydrogen addition or removal should only operate on those selected atoms. This allows "partial hydrogenation." :-)
Logged In: YES user_id=21420 Originator: YES
This is now fixed in SVN (rev 545 or later).
Logged In: YES
user_id=21420
Originator: YES
This is now fixed in SVN (rev 545 or later).