XDrip on wear watch for a kid: how to enable longer vibration alarm?

[zwackelfuss]

Hello friends,

our T1D son will go to school.
We are using AAPS + Dexcom G6 + xDrip + Insight pump + samsung galaxy smart watch 4.
What I would like:
The watch displays bg values (handmade AAPS watchface, just important information for a kid) - that's ok.
xDrip sends alarm alerts to the watch- that is also ok.
During school, alarms should be silent, just vibration on the watch so that he knows he must eat a snack.
Problem: there is just once a short vibration on the watch. I can chose different patterns, but they are all lasting not longer than 1-2 seconds. This is too short and are likely to be ignored by the kid.

So my question is: how can I tell xDrip or the watch to keep vibrating until the alarm is snoozed (just like a phone call keeps ringing until you pick it up)?

Thank you for helping!

[zwackelfuss]

After long trial & error, I found a way to get what I want: there is a wonderful little app called wear notification helper that lets you configure customized vibration, sound and even speech signals for every app.
Perfect solution for me, no further questions