The 'E-Team' and the 'B-Thing' were the names of the two groups of Israeli 'art students' that occupied the North Tower of the WTC for nearly a year 2000-March 2001.

The 'E-Team' had it's name spelled out in the windows of the higher floors of the North Tower, making sure to include Building 7 in its official pic of what they called an 'art installation'.

https://www.ifar.org/nineeleven/Kocache%20fig2.htm

Also, the E-Team had another art installation on the 91st floor, that included a platform in the center window of the floor. This platform was less than 30 feet from the impact site of Flight 11.

https://graviolateam.blogspot.com/2019/09/gelatin-and-e-team-israeli-art-students.html