taskbar question

[Rushhh]

Hi notice in new rom it dosem't have the old version taskbar. In the old rom there was a drop down menu in the upper right conner that let you switch to different program and end the programs as well. And check the memory status, and etc

Can I download a program that works with the new roms or is there a way to change this rom taskbar to the old one? I've done different search on this site but not sure what that part of the taskbar is called.

I've added a image what I'm looking for.




Thanks