Delete the old CUA and build a new CUA on the Solution Manager

Hello together,

I'm about to delete the old CUA and build a new CUA on the Solution Manager.

The users are in multiple systems almost the same.

This raises the following questions:

If I export the printers from the old CUA in a file and import into the new CUA (Solution Manager, then the printer can be administered directly in Solman?

Furthermore, if I depended on the second or third child System and attached to the new CUA, the user description data are not overwritten, as bsp: with the description data of the last-connected system?

By delete the CUA child system in which users are blocked. Can you handle it?

I thank you in advance

Mirsad