Forms button

I have an app with a primary Table and 5 child tables. On my dashboard, I have a report on the primary table (Agency) and a report listing each of the different asset tables. 

Currently, I can add a new asset, but it uses my default form.  I could update this form,

My question is how to get the Agency table report button to upload my designed form instead of the default form. (figure 2)

Note:

You had stated:

just go to settings for the table and then Forms and then twist open the twisty for Forms usage and set your new style form to be used as the default for all roles for add and edit

I am not sure what TWIST and TWISTY meant.

Thanks for all the help.