We are using a test domain just now and looking at "going live".

I'm reading the help pages at ......

Planning the Migration from Lotus Domino to Zimbra and following

Am I correct I could create some of the existing accounts by the migration with their address books and calenders only by carefully ticking and un-ticking options?

How complex is this?

And when the help says "you must run the ZCS Migration Wizard from a Microsoft® Windows® computer that has Lotus Notes R6 or later installed" - do you mean a server or a workstation?