Please notice that we don’t have any specific columns for bbPress. So if they don’t offer a column for the topic count for a user, it is not possible to create it with our plugin. You could write your own columns (with or without our plugin) or maybe there are already snippets available on the internet by people who already done this.
If the topic count is a default column that ships with bbPress, you should be able to add this column with Admin Columns. In that case it should appear in the default group in our column type option. If it is already added to the page but not visible on the overview, you could try to make it active in the screen options menu (right top screen of the overview).
