Intend API - Modify Alarm

For the Use in Tasker, it would be great if there was an Intend to alter the waking time on an existing (labeled) Alarm.

For Explanation: I have a Task that looks up into my Google Claendar and if there is a Workshift coming up the next days and enables the corresponding alarm. If no Work is scheduled, all alarms will be turned off. Now I wanted to expand that functionality to if I have no work but a general appointment coming up the next day, I want an alarm to be set for the next days. Creating a new one (without label) works, but the consequence would be, that the Alarm list will slowly be filled up with clutter, so it would be great if i could create an alarm with a label and being able to modify the alarm times each time instead of creating a new calendar

Whenever I create an alarm, it defaults to one-time alarm. Then it gets deleted after it goes off. Only if I choose a recurring option does it save it.