for example, I want to get some drive details from a windows server and i want to display that in the bigfix console like a pop up box.
Your best bet would be to setup a analysis and then add/create the properties you want.
If your looking for an immediate popup, you can create a right click option for that, but this would end up being a per PC basis. For example, I use this to do quick queries of the BES Client.
ShellCommandRelevance
"cmd.exe /K sc \\"&hostname of current computer &" query BESClient"