Another iAssembly question

I am currently working on a project where I need my assembly to change and have different variations. I accomplished this through the iAssembly function in Inventor. I have the part working and now I want to try and incorporate a form/ilogic that will allow the user to fill out the form and have the model change based on what they input. I was unsure whether there was a way to control what happens in the iassembly through ilogic or if there is a way to have a form select between the different iterations of the assembly. As of now I have not found a way in ilogic that can link what was done in the iassembly.