Ability to use Macros in Item Update Itervals

It would be really nice if you could use macros in the zabbix item "Update iterval" fields. This would allow you to specify different check interval frequency.

Example:

High frequency checks: 30s
Medium frequency checks: 2m
Low frequency checks: 15m

Doing this would create a much more robust monitoring environment that is more able to adapt to different monitoring scenarios.