How do you work with an external editor?

[Tiemo Hollmann TB]

Hello,

from time to time I read here about using external editors (with LC 6.x).

I am completely missing how the workflow looks like with an external editor,
which is not integrated into the IDE. No instant testing, no debugging, etc.
Do you really copy and paste the code vice versa for testing? Am I something
missing on how to integrate ext. editors or what sense does it make?

Tiemo