Sort by content types in a view I have 12 content types and a view that shows the title and description of each piece of content.

I want to sort the results of the view as follows: 
First, node types 1, 4, 5 and 9.
Then, node types  2, 6, 10  and 12.
And finally, node types 3,7,8 and 11. 

Is it possible to sort the results of this way?

Thanks.
Tried several things, but the one bulletproof solution that I could come up with is to use Views Attachments


add a page display, filter by node type 1.
add an attachment display, filter by node type 4, attach to the page display, after its content.


Repeat 2 for each of the remaining node types in the desired order.

It will be a big view, but should do the trick.

Edit: that is the best solution I came up with, without an extra module.