How to go arround 100 column limitation of SAC models

Hello Experts,

We need to import BW data that consist of 150+ columns. We found that Model are allowing 100 columns and that to we need to consider key and text both. Due to the current requirement we end up selecting only 70+ columns from our source data, as some contain key and text both.
Wondering if there is a way to go around 100 column (in models) restriction in SAC?

I do not see a point of splitting data in multiple sets of column.

Thanks,

Viraj