To link from one site to another, I use this code in the ‘from’ site…
How do I link to a SPECIFIC FORM within MyBeautifulNSBCreatedSite?
that second line should read:
<a href="https://MySite.com/"> My Beautiful NSB Created Site</a>
Add a query string to the URL:
<a href="https://MySite.com/index.html?form=frmHome"> My Beautiful NSB Created Site</a>
Then, in your app, check location.search. It will contain the query string. You can then do a ChangeForm based on that.