Modification of Custody: How to Do This Right

My question involves a child custody case from the State of: OR, Washington

I would like to file a motion, that includes following 3 points:

1) JUDGMENT MODIFICATION and DECLARATION IN SUPPORT (Spousal Support only)
In consequence of the substantial change in circumstances and the pre-payments being
made in full, a termination of the temporary spousal support is requested.

2) SATISFACTION OF JUDGEMENT
following ORS 18.235
A judgment debtor, or a person with an interest in real property against which a judgment lien exists, may move the court for an order declaring that a money award has been satisfied or for a determination of the amount necessary to satisfy the money award, when the person making the motion cannot otherwise obtain a satisfaction document from a judgment creditor.

3) ENFORCING CUSTODY ORDERS
My Visitation rights are being denied by my ex. I have no other choice to enforce a custody order.

QUESTION:
Do I have to file for each point one motion individually/separate?
Ir can I file ONE MOTION that contains all 3 points at once?

Modification of Custody: How to Do This Right