Add option to group graphs by 2, 3, or 4,

[estatistics]

When you have many variables for analysis, is not at all convinient to have each histogram below other - much paste is wasted.

I must use GIMP to pack them in rows of twos, threes, or fours. In a document, you save a lot of space, and it is much more easily readable, in one page you can check multiple histograms, plots than scrolling continuously down.