I have a List1:
{{1, -1.1}, {2, -1}, {3, -0.9}, {4, 0}, {10, -0.4}}
and List2:
{{2, -0.6}, {3, -0.6}}
and I would like insert the List2 to certain positions of the List1 like that:
{{1, -1.1}, {2, -1}, {2, -0.6}, {3, -0.6}, {3, -0.9}, {4, 0}, {10, -0.4}}
But when I use Insert[List1,List2,3], I get extra brackets of the List2
{{1, -1.1}, {2, -1}, {{2, -0.6}, {3, -0.6}}, {3, -0.9}, {4, 0}, {10, -0.4}}
Is it possible do it without extra brackets?