Thresholds

Hello,

https://www.monitoring-plugins.org/doc/new-threshold-syntax.html

I would also like a duration parameter for the threshold, for example a 
lot of units only has a CPU usage not a load average and to avoid alerts 
during short spikes of load it would be great to say that for example 
only issue warning or critical if the load is > 80% for 15 minutes or 
something like that. This is good for most things I think like the load 
on an interface an so on.

Has this been discussed, can this be added to the threshold syntax?

Regards
Magnus