How to inspect dynamic dropdown elements?

Inspecting dynamic invisible dropdown elements are very painful and it is very uncertain, in some case

1. F8 will work
2. Pause button in DevTools works
3. But in few case none of them will work

So how to handle such elements and what is omni solution, here in the below tutorial I have explained the solution with real time examples-

We can use SelectorsHub Debugger feature to inspect any kind of dynamic element, invisible element etc.