I added leads to a Direct mail campaign i am running. I have created the campaign and then add the leads via Campaign > Add existing leads.  If i go into one of the assigned leads i see the campaign. 

Now i want to print adress labels for these leads but i cannot find a filter which gives me an overview of Leads linked to a specific campaign. 

Q1) is this filter not available? if not

Q2) what would be the correct process to manage this?

Q3) how to manage bulk changes to leads from a specific campaign (there is no campaign field in leads)

Please let me know asap.

Thanks!