Questions
Q1
Will it be able for Hi-Fi A85S3 motherboard to make three clone view screens with add on PCI-E VGA card?

Clone view will only be able to work from single GPU. So Hi-Fi A85S3 will be able to do clone view with on-board VGA and on-board HDMI port.

With add on VGA card, it can do extension view with on-board VGA and VGA card with two GPU.