I would like to know if either of the both solutions can be achieved:
i) configured keyboard shortcuts for terminal commands are also valid in the dolphin-internal konsole (callable in dolphin via F4).
or
ii) keyboard shortcuts for terminal commands are explicitly configurable for the dolphin-internal konsole (callable in dolphin via F4).

Of course, there is the possibility of creating shortcuts for the konsole, but they are not valid for the konsole 'embedded' in dolphin.

Thanks a lot!

Can you please clarify what sort of actions you are trying to achieve through the keyboard shortcuts?