Internal Connectivity Links in Capital Composite Symbol

Hello,

Q1: are the Internal Connectivity Links in symbol somehowe visible and useable for CAVAL/CAVAI once we connect internally in composite symbol  e.g. fuse and relais together?

Q2: can I assign two or more different name designator to each single symbol in composite symbol? I would like to combine in this symbol independent devices in logical diagram and use this composite symbol for one particular library part.

Q3: shall I convert external all external pins from inserted block symbols to internal or can I still use them as external ?

using Capital 2015.1 SP1602

Regards

Pawel Mudrak