Another crazy question.

Okay I have ny heated tube all set up . I am on supplental oxygen do I just use the connector and attach mask to it on one end and Tube on the other?

Is there an oxygen port on the mask?
Otherwise, you may need to use a "T" connection.
My machine's heated hose may work differently from yours.

I have a t connector- it fits the end of the hose that connects to the mask ant the othe end fits the mask. Does that sounds right?

Sounds good to me; but I hope someone who uses oxygen will chime in.
Some heated hoses will not work with the t-connector at the other end.
I don't know about yours.

I connect it between hose and mask. Then I ziptie the oxygen line down the length of the hose.

My husband uses 02 and the DME set up the connector at the end of the hose that fits onto the machine. We have the Resmed machine with standard hose and FF mask. The connector attached to the mask end could become detached while sleeping and turning over,restlessness,etc. If I remember correctly, she also told me the oxygen delivery was more accurate with the connector attached that way.