Adding a Race to a Campaign?

Hello all,

I was wondering if someone could please handhold me through the process of adding a race to a 2E campaign? It's not my campaign, so I'll be showing any help to the GM, but hopefully we have it ready ASAP because I missed the first session due to inability to figure the issue out. :S

Basically, we want to add an Aasimar from Warriors of Heaven. FG doesn't sell that book, but I can do the random rolls involved and just set the results as standard for the race. It's only for this campaign, after all. But, how do we do this? Someone on the Discord suggested dragging Human into the race list again and editing it, but the GM says it doesn't work, and the padlock on the list is greyed out.

Any help, please? If you prefer to DM the solution, I'm at Legacy Ark Games#0725

Thank you!

Ive replied to you again in Discord. The GM doesnt have to do it you can do it yourself.

I created several races (taken from Rolemaster) and following various YouTube tutorials was able to (finally) have them successfully work.

Send me a PM if you'd like to log into my campaign to see how I have them worded for function.