Sprint Today Screen Questions.
 

With the new Sprint 6.5 rom, I have on my phone:

my location button
Calander Button
and the quick link buttons

is there a way to remove these totally from the today screen? Also is there a way to add the call history button, in fact I cant find mine on the phone anywhere unless I miss a call, and last on my task bar I used to be able to touch the speaker button and adjust the volume, now I get a screen called Notifications. Is there a way to change that?

Lots of questions so Thank you for your help.