ORLY!? Wel this might come as a shock but i have no idea how to make a code that checks used slots and also puts it into an other and that checks if they are all full.
Owyeah not to forget this: How to make it that it wont only put it in slot 2 if slot 1 is taken, it must do like slot 1, 2 and 3 full? Well then in 4!
Reading hard much?