I want to know if it's possible to do horizontal scroll in a portal?
No its not
Its a feature Ive been asking for
What do you want to do with the horizontal scroll?
In my case I want to use it like a column in Excel to see comparable columns of data. Such as Years of Financial Statements
You can do something similar though by creating a number of "column" relationships and you can use global field keys buttons and scripts to "scroll"
through the data.
Retrieving data ...