From the Allow Mass Change setting on the Installed Products Settings under Custom Settings page, you can enable or disable mass changes for must configure assets on the Installed Products page.

ActionAllow Mass ChangeType of the AssetType of selectionBehavior
ChangeUncheckedMust ConfigureSingle SelectLaunch configure product page
ChangeUncheckedMust ConfigureMulti SelectDisable Change
ChangeUncheckedCombination of Must configure and not must configureMulti SelectDisable Change
ChangeUncheckedNot must configureSingle SelectLoad into cart directly
ChangeUncheckedNot must configureMulti SelectLoad into cart directly
ChangeCheckedMust ConfigureMulti SelectLoad into cart directly
ChangeCheckednot Must ConfigureMulti SelectLoad into cart directly
ChangeCheckedMust ConfigureSingle SelectLoad into cart directly
ChangeCheckednot Must ConfigureSingle SelectLoad into cart directly