Updates - threshold computers

Hi, 

Updating workstations is pretty important, but we're getting spammed with "Reboot required for updates", "Missing MS Windows patches". 

We would like to be able to set a threshold for Updates for Workstations/servers. 

Example :

Group > Workstations > Threshold - notify if no updates have been installed for over 30 days. 

Example 2 : Reboot required for updates has not been done for over 14 days. 

Thank you,

Dennis