insertNextTo
Inserts a row or column at the specified position.
The new row or column is placed next to @sibling, on the side determined by @side. If @side is %GTK_POS_TOP or %GTK_POS_BOTTOM, a row is inserted. If @side is %GTK_POS_LEFT of %GTK_POS_RIGHT, a column is inserted.
Parameters
sibling
the child of @grid that the new row or column will be placed next to
side
the side of @sibling that @child is positioned next to