tabbed text entry

It would be great to be able to Tab between text fields anywhere there is one. This could be either with the Tab key on a QWERTY keyboard or perhaps Pig+Right Arrow on the console. I realize Pig+Arrows are used in spreadsheet/cells to extend the selection, but perhaps it could also be Tab when text is being edited. This would speed up numeric placement of items in the Plot view, but also any other place multiple text fields are available. It could even be useful for entering values in Editor windows. Set to begin editing and then Pig+Left/Right to move between cells and stay in the Set mode until typing Enter.