This could cost you some time if you’re not familiar with it. We’re running an OpsMgr 2007 environment, monitoring about 40 Servers and last week I discovered I was not able to execute a task for multiple clients though I was convinced that this should be possible.

As soon as I selected all my agents the tasks disappeared from the task pane. The problem turned out to have quite a simple solution. You CAN execute tasks for multiple clients at the same time as long as the number of selected agents does not exceed 10 agents.