Background
We have introduced functionality to surface connected temporary accounts to help patrollers detect abusive clusters more efficiently.
However, when patrollers decide that a cluster of related TAs should be blocked, they currently must apply blocks one account at a time through Special:Block. This requires repeatedly opening the block interface, selecting the same options, and submitting the block for each account individually. When clusters contain many related TAs, this process becomes slow and repetitive.
The goal of this task is to reduce that friction by allowing administrators to apply the same block to all related Temporary Accounts in a single action.
User story
As an patroller investigating abuse from a Temporary Account, I want to be able to apply the same block to all related TAs in one action, so that I can efficiently handle clusters of abusive accounts without repeating the same block process many times.