HTC One M8 Widget help needed!

[fee dee cat]

I just purchased M8 coming from Evo 4g LTE. I had a stock task check list as a widget. OK...I've found the HTC stock task app on the m8 but is there a way I can make it a widget to stay open? Or, can I get suggestions on a simple task/to do widget. Just a simple check off widget. Thanks