Citrix Netscaler manual?

Greetings all.

We have Citrix ADC 13.1 with Standard license (unfortunately). I have set up PrivacyIdea with two types of tokens - hotp and email. I set up Radius and SMTP. Set Storefront to Domain+Token. Hotp works fine, no issue, it asks for the secondary password, I type it from my app and I’m in. But I cannot find any info how to properly set up Netscaler to redirect to PrivacyIdea portal where I could choose my token type (send email in my case). Tried to follow some Duo manual for similar task but no dice. Am i missing something?

Nevermind, I RTFM. Apparently using the PIN is the solution.