Black Lives Matter. Please consider donating to Black Girls Code today.

Is the transforms split function only restricted to one splitting factor?

I am making a boxplot and have the raw data in a long format. I want to split it into different groups. Under the Transform button you can choose how to split your data, but you can only do this ones. If I want to split it according to multiple factors, e.g. age and gender this is not possible, or?