Table cell padding (inset)

I've been using iWork for five years already, even though still staying "in touch" with MS Office, and I really love Apple's apps. The one thing that really annoys me though, is lack of control for table cell padding in Pages and Numbers and Keynote... Of course, there is "inset" setting but I would really love to have control over top, bottom, left and right separately. Sometimes I want to make one row with bigger spacing, but keep it aligned with other rows above and below. Sometimes I do tables without side borders and would like to have text aligned with horizontal table borders, etc.

Please, Apple — add this simple functionality!