Since each column can be mapped to many categories, how can interface show categories assigned to the column, so that when user drags card into a column, he can drag it directly into one of many categories?
more specific: have categories visible at all times with a way to customize look and feel.
Something like this:
| Column 1 | Column 2 |
|-------------|-------------|
| | Cat. 1 |
| |-------------|
| | Cat. 2 |
|-------------|-------------|
A way to customize the look of each category, and min height also would be nice.