Ok, I'm really really dumb, so can someone give me an example of the command line I need to type to mine?  I'm able get the wallet GUI to open and run, but have no idea how to actually start mining.  I get errors when running that 'set generate true 4' command regarding RPC credentials, authentication cookies, and no rpcpassword.   Where the heck do I set a password?  Also, there's no "MENU" selection anywhere, but apparently just running uraniumx-qt is the same thing??  Any help would be appreciated.