Currently, there is no way to customize what information is shown on the right hand side bar within the information cards.
For example, if you're in a contact record, the company contacts will be listed to the right, however it only shows their Name, title, office number and email address. Since I call most people on their cell phones and that doesn't display, I have to click on the contact, get the number, and return to the company page.
The same goes for not being able to see which lists a contact is a member of without having to click through.
Does anyone else agree that this functionality would make the platform more effecient so that we wouldn't have to do so much clicking back and forth between contacts, companies, lists, etc?