Fusion - create linux vm using multiple DVD iso's - Howto?

Hi folks,

I need to create a linux based vm (debian etchy + jessie) that uses multiple DVD iso's.

It seems I can not change to the next iso when the installer asks for it?

I tried to add 2 additional cd drives and added the 2 other DVD iso's but this does not work.

How can you do this?

I'm using Fusion version 8.5.8 (5824040)

Thanks for helping out!