Cisco ASA5506w-x first time setup

I have a cisco asa 5506 running version asdm 7.4 and asa 9.4. I am trying to set it for the first time and I'm not familiar at all with this. I can setup a basic router for a static WAN IP but have no clue on setup for this box. I have reset the box to factory defaults and have interfaced into the box on Ethernet1/2 "inside" on 192.168.1.1 and I am in the box using the ASDM. (Also I have verified the cable I am using does work for internet by setting up a router on the same static WAN to verify)

I am looking to setup this as a router replacing a home Linksys router. We have a Comcast box in passthrough/bridged.

1. How do I set ethernet1/1 for "outside" static WAN IP address given my ISP? I believe the Comcast box LAN ip is 10.1.10.1 so do I set the outside IP to 10.1.10.2 and use a static route or use the WAN IP (not actual IP) 50.200.200.251?

2. I guess once I have internet how do I do a basic port forwards like rdp 3389 to local LAN 192.168.1.11