In the bar chart, there are different calculation options. One variant is Count, which counts how often a value occurs in a column. If you have two columns - one with the category and one with the frequency - the calculation must be switched to Sum.
In some tools, there is no additional output other than the chart. In these cases, the button is accordingly grayed out.
Yes, that is possible. To do this, double-click on the points. A small form will open where you can set the colors.
Yes, the images can be copied to the clipboard using the copy button at the top left.
This is currently not possible through the software. However, it can be done with a snipping tool.
No, a grouping variable cannot be specified there. However, you can unstack the data and then create a separate regression analysis for each group.
Yes, that is possible. In this case, you specify the same data series for both data and group and select Count for the calculation.