There is a webinar for modelling, analysis and design of rcc rectangular water retaining structure along with impulsive and convective wave pressure on coffee corner, but there are some limitations and assumptions, like the xml templates are only for rectangular tanks, and only for underground structure, the.xml template for calculating impulsive and convective wave pressure isn't for circular or any shape of structure weather it is elevated/underground, also not for tapered wall, we want an automated an in built option for calculating impulsive and convective wave pressure for any type and shape of tanks,
My point is that the script file that is used to define the tank is just an example. The script system is free for you to define different rules for different types of model (not just tanks). If you want you can create a version of the template for tanks with inclined bases or different lateral loads to account for different fluid densities. I would agree that the script system currently does not include support for seismic or dynamic loading, that can be a takeaway recommendation.
Thank you for posting your ideas. The purpose of delivering the structure wizard with a template using a script is to allow any user the flexibility to modify this/create their own to meet their specific requirements. You have the tools to make it work the way you want.