Hello, another problem here. I have customized EpiserverForms to open as a popup. Problem is that on "formsNavigateToStep" event window is scrolling. Responsible for that is "_scrollToTheTopOfForm();" method. Any suggestions how to override it??
Unfortunately, that method _scrollToTheTopOfForm placed in $(document).ready, so it cannot be override. But looking at the content of _scrollToTheTopOfForm, you can disabled that method by removing css class .Form__Title in the FormContainerBlock.ascx which can be found on zip file of Forms module. Or you just remove that css by your js code.
Hope this help!