Enter Absences for employees in bulk (swap existing absence type with new absence type)

Summary:

I'd like to know if there is a way to mass enter absences for handful employees at once who have an existing absence and then we want to replace it with another absence.

For example, 50 employees have Vacation entered from October 15-20 8 hours each day, Monday thru Friday. I, as the admin, want to update that Vacation entry to lets say Personal Leave for the same date and duration. Is there a way to do this in bulk without the risk of overlapping and ensuring it's a "swap?"

Another scenario - similar to above but lets say employees had Vacation 10 hours 3 days of the week, and 5 hours the last 2 days → I as admin want to change it to another absence type with the same exact dates and duration.