I'm addressing to "Resteem to community" from another community or from another user outside of the community. And I've created two hive accounts already. So, I was trying from an admin account but there's no such functionality. I can try with hive owner account but an admin account should be possible to do it if the function is already developed.

Update :

I just tried with an hive account and there's no "resteem to community" thing. You can only resteem to your blog at the moment. I suppose accounts with mod, admin & owners should have the possibility to resteem anything from outside of the community to their community if the functionality is going be developed in the future.