Hi Antonio, I agree, you should be able to use the down arrow to return to a blank line and not get stuck on the last command - like bash. I'm going to send this over to the User Experience guys to take a look at implementing.
I just tested and verified that this enhancement made it into EXOS 16.1.2 (scheduled for release in early Fall) and will be in EXOS 16.2 when it releases. Unfortunately, I can't discuss timeline for 16.2. I'm going to go ahead and mark this Idea as "Implemented."