For example green Dots to Blue lines I have the read and write permission quite new to SolarWinds anyone please share some document or link so I will follow along and accomplish the task
Here you have a page with several links to pages on how to create dashboards, both classic and modern dashboards:
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-customizing-the-orion-web-console-sw1367.htm
First of fall I would say thank you for sharing is there video so that way I will see visually how to make Dashboard I add all the Network Devices to the SolarWinds Poller. My second question is I got admin privileges to the SolarWinds do I need SolarWinds Network Atlas to make the OT Dashboard
If you have a newish version of SolarWinds, no you do not need Network Atlas. In fact, keeps saying Network Atlas will be retired in the near future.
If you go to your customer portal, you will find training materials and video classes. In the class called "Configuring Self-Hosted Platform Users and Entity Monitoring" there is one section about dashboards.
Network atlas is depricated and should not be used. It was only for creating maps, and map building is now built in to the web gui.