Impex SMF 1.1.4 question.
 

Here is the list of things this is supposed to import. I have some questions at the end of this list.

Simple Machines Forum
Tier = 1
Source version support in ImpEx = 1.9

• Import usergroup
• Import user
• Import forum
• Import thread
• Import post
• Import poll
• Import Private messages
• Import moderator
• Import smilie
• Import attachment

SMF
Tier = 1
Source version support in ImpEx = 2.0 beta

• Import usergroup
• Import user
• Import forum
• Import thread
• Import post
• Import Private messages
• Import poll
• Import attachment
• Import moderator

When it says it will import forum *3rd item on the list* does that mean it is importing all of the boards?

I understand that permissions will not import. Are there any other things besides permissions that will need to be done manually?

Lets say I do the import and test everything, lets say there are some adjustments that need to be made to the forum. What do I need to remove to run Impex again and will changes we make to the forum remain?