Set Focus target when Add New Instance

Question

[LC Designer ES2 9.0] Using Action Builder to add a new instance of subform SITE, where first field is called SiteName.
If I set action to Set Focus to SiteName, the focus goes to the *original* SiteName field instead of to the new instance.
Users will typically add a number of additional sites and, each time, I want the focus to be set on the first field of the newest instance, not the original instance. How do I accomplish that? Thanks!           ~Carol

Answer 1

I understand the concept (I think...), but am not clear on where to place the code.
I used Action Builder to create an AddSite action: when check box chkAddSite is checked | Add a new instance of subformSiteInfo | and set visibility of subformSiteInfo to visible. Does your code go in that same action sequence? If so, what is the next Action Builder result selection? If not, where do I insert it?
I never know whether the new instance of the subform will begin on the following page, so the user might keep clicking the chkAddSite box, thinking it didn't work. Although, thinking this through, maybe I could force the new subform instance to always appear at the top of the following page, and somehow direct the focus there, rather than to the specific first field???
Thanks!         ~Carol