QUOTE(xander @ Feb 14 2010, 01:59 PM)

It says limit of retention of new schemes is reached and i dont know how to fix this.
basically, you have 3 available scheme slots to save your desired tactics. You cant have more than 3 saved tactics, which means that if you want to save more tactics (4 and over) you will need to select one of the existing schemes from the saved tactics list (for example scheme 2) and OVERWRITE it with the new tactics.
In short, you can only have 3 saved tactics at the same time thats why you get this mistake saying that you are not allowed to have 4 schemes.