Designer Content isn't really set up to do any kind of automatic placement of blocks like this.

When you say "3 recent blocks", what do you mean exactly? Are they 3 recent blocks from a certain area on a specific page, or 3 recent blocks of a single block type that were added anywhere to your site? Or 3 recent blocks of any kind that were added to a certain section? etc. etc.

If you don't actually mean blocks but instead want to list some content from recent pages, you should use the built-in "Page List" block instead, and you can use the free "Page List Teasers" addon (http://www.concrete5.org/marketplace/addons/page-list-teasers... ) to show the first block or blocks from an area of each page.

Sorry for not being specific enough. What I mean is how to post (on the frontpage) the 3 most recent blocks (or just part of them) made by DC on a page dedicated to DC blocks. Does it make sence?

I think I understand what you want to do, but I'm not sure how to do it. I know how to get certain blocks from an area on a page, but not to determine which the most recent are. Sorry :(