From Netscaler Access Gateway to F5 APM

it is a different device, it has a different gui.

you first create an ACL, just give it a name, i.e. TECHVPN, nothing else needs to be change now, click [Create]. then you add the actual ACL lines, with [Add]. Type should be L4 , Source IP / Port seems to be any as you just focus on destination. at Destination you add the port 443 and IP1, action Allow. with a second line you can create another port 443 and IP2 and another Allow.

you need to add a deny everything as the final line, there doesnt seem to be an implicit deny.