Schedule editor: how to undo a skipped stop, marked with dash (-)?

[bufemc]

Seems you can skip stops in the schedule editor by marking the field with a dash: "-". However, it seems that if you did that accidently, there is no way to undo that. Means if you just want to replace it later with a specific time, the input is ignored and the field keeps to be "-". Is there a way to undo a skipped stop?