These are not blocks, but metablocks that group together a number of normal blocks and choose the right one depending on language

• First, you have to go to this module settings and define the number of multilingual blocks you want.
• Then, in the block admin screen you will find some "Multilingual blocks". Set them up as usual (region, visibility, etc...) and then click on configuration, to define which one of the other blocks will be shown for each language.

Module developed by Jose A. Reyero, www.reyero.net

Select the block to be displayed for each language