created new structure

VS code/Form15.vb

@@ -0,0 +1,32 @@
+Public Class Form15
+    Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click
+        Form1.Show()
+        Me.Close()
+    End Sub
+
+    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
+        Form11.Show()
+        Me.Hide()
+    End Sub
+
+    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
+        Form14.Show()
+        Me.Hide()
+
+    End Sub
+
+    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
+        Form16.Show()
+        Me.Hide()
+    End Sub
+
+    Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
+        Form17.Show()
+        Me.Hide()
+    End Sub
+
+    Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
+        Form18.Show()
+        Me.Hide()
+    End Sub
+End Class