I am under no illusion that this FR will be even seen...
I did a quick search in the forums, and I see numerous requests for this feature dating back 12, 10, and 7 years ago... Still no response by anyone...
But to bring this back to the forefront:
Please add a GOAL option with DISTANCE and PACE (or time).
For example, Running 10k in under 1h (or running 10k with pace of 6 min/km or less).
Having a goal of pure distance is meaningless, as I can simply walk for hours, and a goal of pure time is equally meaningless as I can simply not stop my activity as I sip a beer.
Having a goal of combined distance and pace/time is the only meaningful goal for any kind of performance!