Originally Posted by xdarkmario
Can I replace the slim taskmanager with onmiswitch just like you can in onmi Rom? Long press home to bring up onmistwicher
Yes you can. I assume that if you want to replace the slim task manager, you must be using SlimRom. Then: Settings > Navigation > physical buttons > check the first box to enable custom actions > Home button long press.
Any other ROM, you're able to set this by using GravityBox (Xposed module) and edit HW buttons custom actions.