replacing Folders View panels with DOS shell

[m^2]

Is it possible to replace one of the Folders View panels with the DOS or other shell?

I think it will be great to integrate a folders view with DOS or other shell.

If not, why it's so hard for the implementation?

As for me, I know only one such explorer - Take Command. Besides the command line and folders view integration they even built their own shell with commands.

Go to network neighbourhood and run Console plugin.
It's said to be able to use bash and some other shells.