Metanode execution ( with a condition)

Hi all ,

I have many metanode in the same workflow and I want to know if there is a node that allow to execute one of this metanode only if a condition is happening?

For example :  if a= 1  the Metanode " A" will be executed

                          if b= 2 The Metanode "B" will be executed.

Thanks for your help

 

Look at the switches.