Sublime 4: File Search thru all open files

[bhbmaster]

I use grid layout often as its very convenient for working with multiple files. The only issue is that when I have multiple files open in sublime (not via project or folder open) and many of them organized into different groups (top/bottom left/right), the control-P option only shows me files from the same group. I would like to be able to search thru all open files.
This is a common use case for non-dev type of tasks, where one open lots of files thru different directories in the same tree. This is common in customer success and support types of jobs. I could open the same dir but it has tens of thousands of files.