Since the introduction of CRM 4.0, and the (un)wise choice to decide on behalf of every CRM user that to prevent multi-currency problems, MS would choose FOR them to prevent EVERYONE from doing bulk edits on currency fields, we have had a lot of complaints from users.
MS needs to fix this. It worked in CRM 3.0 - now it doesn't.
Allow customers to CHOOSE to have the ability to do bulk edits on currency fields. Many, perhaps MOST customers do NOT use or need multi-curency, so the functionality should address the majority's need with this issue. Regardless, it should still be a customer's CHOICE to allow this or not - not a limitation (BUG) that purposely MS hard codes into the code to prevent.