The TAGS Button

3Play’s TAGS feature relies on the Control Surface number pad as its primary input device. Numeric entries made using the keyboard are always treated as literal numeric characters.

Similarly, if the TAGS button is not lit, Control Surface entries are added to the dataview as simple numbers. (It’s possible to enter tags by directly clicking cells in the TAGS pane with the mouse, but in most cases you’ll find it faster to work with the Control Surface.)

Section 13.2