I am moving from PowerBI to Zoho Analytics and while I find Zoho easier to use in many ways, there is one function that I use in PowerBI that I have not been able to find in Zoho.  

I have several data sets that I need to modify in different ways to get at certain data on my dashboards.  This requires using certain rows in a column and deleting others.  In PowerBI, I am able to create a master data set and then create sub-sets that reference that one.  That way I can have them all together in one place.

Is there a way to do that in Zoho Analytics or do I need to import that same database several times to get there?

Thanks!