autosandbox no sources ? in proactive mode?

Comodo Internet Security - CIS Install / Setup / Configuration Help - CIS
#1

are these supposed to be empty in “proactive security” configuration??

there are sources when using the “internet security” configuration.

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#2

yes this is how its supposed to be. It will sandbox any unknown file from any source

#3

i thought there had to be a * as source for it to be any file. thanks.