Manual synchronization

I've made an error while creating a rule that made me lost web connection to the node 1 of the firewall. Then, because of the automatic sync, I lost the connection to node 2. :)

So, I think that one could choose if the sync is manual or automatic. Create some rules on one node, test them, and if they work, sync to the other node. This could be done by a "Sync now" event.

What do you think?