jamespoly86 unfortunately, no, I didn’t even finished documentation for Paint Shop, license plates generator or neural tyres… I do have a problem with making those, to be honest, but I’m working on it.
Manual mode, as any other mode in Random category, is the mode in which you list not your opponents, but only candidates. Then, you select a number of opponents you need, and CM will generate a racing grid using candidates randomly, either in shuffle or random mode.
With custom mode, on the other hand, slider with the number of opponents becomes disabled — in that mode, you fill the grid car by car, and without any randomization. You can also pick all the details you might need to specify, such as AI level per car, skin per car, custom driver names/nationalities or AI limitations.
What do you mean by times not being realistic?