How to select the connected inner faces all at once?

[sluzzer]

How to select the connected inner faces all at once.
For example, I have a hollow pipe which is lengthy & bends in many directions. I want to select all the inner faces of pipe at once, without individually selecting the faces. Is there anyway to do that?

Thanks

 

[jerry1423]

yes, you can select by region
maybe check if that option is available in whatever the command is that you are utilizing