Adding 'member portal' member to form.

Hi,

I'm new to the Zoho universe (and not a web developer) and I am currently trying to add a form to my Zoho site.

I've started building a website with Zoho Sites and have managed to activate the member portal, as I want signed-in users to have access to spedific pages.

On one of these pages I'd like to include a form that gathers a bit more information from signed-in users. Now, I cannot figure out how I can store the signed-in member alongside the form. The 'sites' forms don't seem to have that option, I've contacted the support for 'Zoho forms' who told me that Zoho forms don't have that feature, and my attempts to then solve this problem with a Zoho Creator app have been futile as well.

I've managed to create a workflow for a creator form that retrieves 'zoho.loginuser' or 'zoho.loginuserid', but this only provides me with my admin login if I test it on the creator site, or with 'Public' if I test it on the website (where the creator form is embedded through an iframe).

Any suggestions how to resolve this would be greatly appreciated!

Thanks,

Felix