What functionality is missing? What is unsatisfying with the current situation?

My Campaign is playtesting the New Marvel Multiverse RPG System, we are having to use Roll20, the system isn't an option in World Anvil so my Players are keeping their character sheets separate from World Anvil as the template isn't an option here. It makes game play cumbersome to bounce between windows for characters, world info, and rolling. The RPG is available this year for playtesting and gets full release next year.   

How does this feature request address the current situation?

It would make game play fluid, reducing the number of sites players use as well as letting us centralize where their character info is stored for campaign.   

What are other uses for this feature request?

Sanity for the GMs running or contemplating running Marvel Multiverse RPGs.