Problem with finding Block

CaptureX
How and Where can i get this Block?

Who but you should be able to answer this question?

You need to create it

http://www.martyncurrey.com/android-mit-app-inventor-auto-connect-to-bluetooth/

that block is a procedure, so, it isn't built in. from procedures menu, drag a "to procedure do" block, go to the mutator and add a parameter - adress - and define it with other blocks.

I have aready done that, see above pic and I have created it as a new topic.