Row auto repeat?

Hey! I've read layout documentation couple of times, however I still can't find any api call without columns.
Imagine grid inside the window, where grid can be resized and width can be changed. So it should be basically something like:
``` nk_layout_row_static(ctx, 60, 60);```

nk_widget..
nk_widget..
nk_widget..
...

Start with the layout documentation and the existing nk_layout_row_static API. Determine how a resizable grid could repeat rows without explicitly supplying columns, then compare the behavior with the nk_widget examples in the issue. Done means the proposed row layout works as the window width changes and its API behavior is documented.

Written by the indexing model from the issue text.