Anyway to change notification alerts and duration?

[GeorgeCT]

Well I finally have my HTC ONE (M8) but there's one thing I can't figure out.

Is there a way to change the frequency and duration of a notification alert?

For instance, my phone is sitting on my desk and I'm in and out of my office and I have a missed call/text/e-mail etc.

Is there a way to set the notifications to keep alerting me every minute, two minutes, five minutes, ten minutes, twenty minutes etc, until I turn it off or acknowledge it.

I thought I found I could be notified up to 10 times but I can't find that setting again (and I don't remember how many minutes passed before the next alert tone).

Thanks in advance for any insight.

[Tidbits]

There's no way to change the duration. 5 minutes is the max from what I have been reading. You could always put an enhancement request and see if HTC will listen if a lot of people request it.