EndNote 20: how to change/delete/edit the layout of references

Hi, 

I am new to the EndNote and its a steep learning curve. I dont have lot of resources to learn more about it. i am struggling to understand how can i change the order of my references in an article if i have to delete a sentence or move it up or down along with its reference. Can any one please help me?.

also any links to any good tutorial vidoes will be greatly appreciated