World Buffs 1.0.0

I have not yet purchased it, but I would like to confirm whether the following is possible.
From the description, I believe it should be, but I would like to double-check just in case.

Is it possible to grant permissions to a group as a reward?
For example, as a simple case: completing a task such as cutting down 1,000 trees would grant all players (in the default group) the permission to use backpacks (i.e., running oxide.grant group default backpacks.use).