What is the most complete definition of the difference between the Install Policy button on the SmartConsole's tab, and the Install Policy within a specific policy?

The global Install Policy button does not automatically save and publish the session before installation - publishing is a separate explicit action the administrator must perform.

Both the global and policy-specific Install Policy dialogs support selecting and installing multiple policies simultaneously, so this is not a distinguishing difference.

Anti-Malware policy installation behavior is governed by gateway assignment and policy configuration, not by which Install Policy entry point is used.

When an administrator clicks Install Policy from within a specific policy package, SmartConsole automatically pre-selects that policy and filters the gateway list to only those gateways where it applies. This is the key behavioral difference from the global Install Policy button, which opens the installation dialog without pre-selecting any policy or gateway, requiring the administrator to make those selections manually.