[Drunken F00l]

You would have to add each one of their SteamIDs.

Example:

Code:

"SteamID:STEAM_0:0:1234"
{
    addAdminCmd = e_spawnprop
}
"SteamID:STEAM_0:0:1235"
{
    addAdminCmd = e_spawnprop
}
"SteamID:STEAM_0:0:1236"
{
    addAdminCmd = e_spawnprop
}

etc... Do this for each person. You can also do it by name, but it's less secure. Examples should be in the DF_admins.txt file itself.

You can also see this page for more:
http://www.sourceop.com/wiki/Adding_Admins