Sending "variables" in BlindTransfer's action using Manager

I used this artifact when I had to Originate a call, there I have the possibility to set “variables” in my command to the manager and use these variables in my dialplan. But now I would like to use it in a BlindTransfer, is there a way to achieve that ?

Since my exten was static (it was for a survey), I sent the variables I wanted (the agent who answer the call and the number of the client) in the Exten itself. The exten looks like this: “pesquisa*XXXX*YYYYYYYYYYY”
Then I made an AGI that receives that exten, split using “*” and set two variables wich is what I needed. ^^