For 2D or 3D Grid plots, toggle-on “Cell Labels” to include cell labels on your plot. You can use grid labels to display chosen data for the grid cells. By default, Tecplot RS labels each cell with its I-variable. Click the Details (...) button to launch the Cell Labels dialog, where you can choose another variable.
Use the Skip field in the Cell Labels dialog to thin out cell labels. By default, Tecplot RS uses a skip value of zero. A value of zero designates an auto-skip mode, where Tecplot RS computes the skip value to produce approximately 100 total labels. The auto-skip mode usefully adjusts to grids with different numbers of cells or when switching between 2D and 3D views.
Use the Cell Labels page of the Plot Options dialog to customize the label formatting (Section F - 8 “Cell Labels”).