Rows can be frozen, or fixed, to either the top or bottom edge of your grid. This allows you to vertically scroll the grid, excluding the frozen rows, such that the rows are always visible in the same position.
Frozen rows can be set by setting a numeric value
n to the
frozen-rows-bottom. This will automatically freeze the first
n to the top of the grid, or the final
n rows to the bottom of the grid.
If context menu is turned on, you can freeze/unfreeze a row from the right click menu
[features: frozen rows]