Timeline Included On calendar

In the program, I am able to see my sessions in the photoshoot calendar view. I would like to be able to add multiple sessions to one clinet portal where they can see it in their client portal as well as it being included on my calendar view. I ask because many of my wedding clients book with packages that include multiple shoots such as engagements, bridals, first looks, and their wedding day. This way I can keep it all in one place under one invoice and portal. I have been adding sessions within client files by adding them in the timeline section. I think allowing these additions to populate in the client portal and the photographers calendar would be very helpful