Main steps for this are :
1. Create a RSForm using the RSForm! Pro component
2. Create a new module including that component
3. Include the module to a page built using the ST Page Builder component
1.1) Create a RSForm
2.1) Create a new Module
2.2) Choose the module type
2.3) Include the required RSForm to the module (Set required position, Access, Ordering, Language, Menu Assignment etc)
3.1) Go to the page built with ST Page builder
3.2) Drag the "Module" tool from the tool box and drop it on design where necessary
3.3) Click on the "Edit" button and choose the necessary module we created.
Now Form should be visible inside the page.