Thank you for providing the pictures. It provided the clarity I needed since “sidebars” are something completely different. You want to hide the COLUMNS for Voices/Topics/Replies/Freshness (for forum indexes and topic indexes) .
Perhaps we will add an option for this in the future, but neither myself nor @robin-w have ever mentioned it as a “upcoming feature”.
Whether we add that as a feature in the future or not is still TBD. But you can easily hide those columns with the following CSS code snippet:
thank you sir. This is great and useful. However, after modification. We didn’t make use of the empty space. The address is displayed in two or three lines, not in all available space.