[Change default adapter for WiFi hotspot?]

Step 1: On the ‘Settings Tab’ of the Hotspot UI you’ll want to make sure Connectify is setup as wireless hotspot. So click on the ‘WI-FI Hotspot’ button.

Step 2: In the ‘Internet to Share’ dropdown select the adapter you wish to share. This adapter should have a working connection to the Internet. You can share any type of Internet connection: WI-FI,  Ethernet (wired)  or even via   4G / LTE dongles  . If you set it to ‘Automatic’, then Connectify will share the connection to the Internet regardless of which of your adapters is used by your laptop or PC to connect

Step 3: Give your hotspot a name (SSID) and password. The hotspot name is the network name that other devices will see and authenticate to using your unique hotspot password. Feel free to have fun while you’re at it and  use emojis and Unicode characters  in the hots pot name.

Step 4: Be sure to have the ‘Ad blocker’ box checked in order to benefit from our   universal ad blocker   that saves you bandwidth, time, money and battery life. Double check that you have everything configured correctly. Then you can click the ‘Start Hotspot’ button to begin sharing your Internet connection with your Wi-Fi enabled devices.

For More Details About You Can Click Here:-

http://www.cetpainfotech.com/technology/Networking-Training

 

[How to proceed a nmap from a router]

I assume by an nmap you mean a port scan. SANs have a nice document on a portscanner called IOSMap. It's capable of performing some basic portscans from Cisco CCNA. IOScat is a port of netcat for CCNA. If you need service discovery you can use that to perform banner grabbing.

Thanks