just wondering how i can set up so i can use dyndns at 2 location or am i going to have to make a second account for the other location (main home, weekend home) would like both so i can have easier access to the security cameras and other internet devices, when not there

You can use the 'Location' feature to do this. Assign a location in the control panel to a group of hosts and put that location in the client to update the IP for that group of hosts.

https://www.dynu.com/ControlPanel/DDNSLocation