Questions relating to Groupware Integration (Outlook)

Hello,

I have few questions relating to groupware integration for Outlook:

Q1) The "Relate to CRM" option in outlook add-in for end user is available only  in client side integration? Is it not available for server sider integration (i.e. in server side, end user cannot directly assign CRM account or Transaction to object in outlook the way it is done in client side)?

Q2) Is there any end user interface (like add-on) available in server side?

Q3)In client side - Can the outlook add-on for SAPCRM be enhanced for different business logic or look n feel?

Thanks,

Vicky