Big-IP enable LACP

Dear Teach Community,

We are currently evaluating BIG-IP LM v15 trial product in our virtual LAB environment. From network perspective we trying to enable LACP in the product, and for that I'm referring to this article:

https://support.f5.com/csp/article/K13142

We are missing a check box under Step 6 (To enable LACP, select the LACP check box).

Any idea as where to find the check box, did we missing anything. We cannot find it as suggested under Network --> Trunk --> Trunk List --> Create. Please find attached a screenshot.

In advance thank you

Bujari