By allowing individual metrics to be rearranged and deleted, you eliminate issues with prepopulating default metrics. It becomes trivial to delete 'weight' for example and retain 'reps', even if 'weight' is the first metric.
Can then get rid of metric increment/decrement bar. Just have 'add metric' button. Decrementing is done by deleting individual metrics.
By allowing individual metrics to be rearranged and deleted, you eliminate issues with prepopulating default metrics. It becomes trivial to delete 'weight' for example and retain 'reps', even if 'weight' is the first metric.
Can then get rid of metric increment/decrement bar. Just have 'add metric' button. Decrementing is done by deleting individual metrics.