New interface of Workout Editor is really good.
But it still needs a little feature for runner workout: progressive training.
How:
1 - set how many loops
2 - set initial pace
3 - set pace step
So with 3 field we can "translate" into a workout (6kms start from 5'10'' step 5'')
1km at 5'10''
1km at 5'05''
1km at 5'00''
1km at 4'55''
1km at 4'50''
1km at 4'45''