Yes, it is possible to modify the default terminal settings.
Yes, it is possible to modify the default terminal settings.
You're using Ubuntu 20.04.1 LTS with eDEX - UI installed. Right-clicking files opens it in the default terminal, but you want to switch to eDEX - UI as the default instead. Yes, it's possible—you can configure your system settings or use a launcher to set eDEX - UI as the primary terminal.
It would have been easier to search online for this. Asking here feels unnecessary. Still, the top result from Google is: https://itsfoss.com/change-default-terminal-ubuntu/
The guidelines discourage employing LMGTFY-links, not targeting questions with extended, unabridged web addresses for complete details.
I mean you're asking about what's considered against the rules, like altering the default terminal setup. Or you're curious about why changing settings might be discouraged. Let me clarify what that involves.