I got a number of columns with data, but how can I align the data to the right. I tried a lot with Alignement->Right but without any success. Default is all to the left. See example.
Dataset is not used as visualization. It merely shows it visually, but it is not intended for print or export. It shows it like this such as to give you a quick overview of your data. Not to refine and customize.
You can create a similar visualization using TableForm:
nds = Normal[Normal[Normal[ds]]];
labeltop = nds[[1, 2, All, 1]]
labelleft = nds[[All, 1]]
data = nds[[All, 2, All, 2]]
TableForm[data, TableHeadings -> {labelleft, labeltop}, TableAlignments -> Right]