Evaluating the FREE, 1 Technician version.

Need to discover Assets but I am unable to get much information on it.

1) AD Scan needs to be restricted to 1 OU folder - is there a way to do this? I am 1 department of a larger organization and we only have 1 OU folder where our assets are.  I don't want to scan the entire domain and pull in other departments comptuters.

OR

2) Using Network Discovery, IP Range - I get about 50% failure rate and don't know if it is a simple firewall issue or not.