Patch for r420.
Thanks for adding the rows/columns input so quick!
However I think it should first display Columns and then Rows as dimensions are always specified in the X/Y or Width/Height or Horizontal/Vertical Order.
Columns determine the Width, it's the amount of frames horizontally, and Rows determines the Height, it's the amount of frames vertically.
The axis logic and order should be the same for both the Column/Row and Width/Height inputs. Otherwise, we must think in opposite ways for both of them which is less intuitive
+1 Great catch, it's definitely the other way round