I will only do this once. If you are an advanced APEX developer please skip this post!
I create a blank page (no rocket science)
I force it to have page number 4, because I like to have straight numbers (maybe I have to rethink my numbering for bigger apps).
I choose the name PLSQL Profiler Run Details for this page and the breadcrumb and pick the breadcrumb "PLSQL Profiler Runs" as parent entry. Breadcrumb done without any extra steps.
I connect this page to the "Profiler" tab in the already existing tab set. Tabs done without any extra steps.
I confirm my changes.
And the result looks like this (approx 3 minutes later, and I'm still a novice).
Ps.: It does not make any sence to clone this page. You will have to pick the breadcrumb and tab settings anyhow. Next time I will build a master detail page out of this empty one.