Custom Field Plugin?

I’m lookign for a plugin which will help me better manage custom fields on the create/edit post pages within my dashboard (not to help how it displays). What I simply want is to be able to have 6 or so custom field inputs at the same time so I can add/edit multiple custom fields at once, instead of having to add one, click the button, add another – so on and so forth. All of the custom fields either allow you to edit bulk custom fields or how they display in themes but don’t actually do anything on the post creation page.