A policy like a PAS or a PSSI is not a fixed object, it can evolve over time. Below are instructions on how to change your policies securely.
Change your policy
⚙️ Cog Wheel > Catalog > Policy tab > Click on your policy
Add a device to a measurement
From the "Catalogue" section > in the relevant policy: Click on the number next to your control
Search for the measure and pair the measure
Define its coverage
💡 If you make a mistake or want to unpair you can hover your cursor over the measure and click the unpair button. 
Modify the coverage rate for one or more devices
You can also change the coverage rate of one or more devices in your policy:
Add a control to my policy
Always from then Catalog > Your private policy > Hover your cursor over the group > Add a control
Disassociate your policy from your perimeters
This step is important if you want to apply the changes to your security base.
You can do this from the “Policies” section > Your policy > click on the number in the “perimeters” column
Hover the cursor over the perimeter(s) and click on the cross.
Reassociate your perimeters with the policy in order to benefit from the new modeling
Restore your perimeters from the “Policies” section > “Associate a policy”
