v		input view
row		row position
w		rows to be inserted

Insert takes an input view and returns one with the rows of w inserted at position row. The views v and w must have the same structure.

set v [view {A B C} def {a b c aa bb cc}]
set w [view {A B C} def {x y z xx yy zz}]

view $v insert 1 $w

	A	B	C
0	a	b	c
1	x	y	z
2	xx	yy	zz
3	aa	bb	cc

view $v insert 2 $w

	A	B	C
0	a	b	c
1	aa	bb	cc
2	x	y	z
3	xx	yy	zz