The form action is pretty simple. It would look something like below. Then, you would click each of the underline sections to select the fields and values you want to use. The trick will be the last part about disabling the icon next to the drop down. That is not a built-in feature of SBM. It is probably possible using javascript, but you would need to figure out the script. Maybe someone else on here will jump in with some code they have used in the past. 

Anyone else have some sample code to remove/disable the submit button next to a relational field dropdown?

Steps to make a form action:

The form action is pretty simple. It would look something like below. Then, you would click each of the underline sections to select the fields and values you want to use. The trick will be the last part about disabling the icon next to the drop down. That is not a built-in feature of SBM. It is probably possible using javascript, but you would need to figure out the script. Maybe someone else on here will jump in with some code they have used in the past. 

Anyone else have some sample code to remove/disable the submit button next to a relational field dropdown?

Steps to make a form action:

Thank you Vickie for your detail explain. I have made sense about Form Actions.

Does someone here use javascript to figure it out in the past?

Thanks

Thank you Vickie, I followed your Form Action you mentioned here, and the JavaScript Michael designed. It works. I apricate it.