I made adjustments to YEP_ButtonCommonEvents and AS_InputSettings so both Arrow Keys and WASD buttons work. I tested it on map, in menu's and when inserting a name with SRD_NameInputUpgrade. The AS_InputSettings plugin needs to be placed UNDER YEP_ButtonCommonEvents. In AS_InputSettings, keep WASD conrols to false, it won't work otherwise. There is no in game ON/OFF switch or Options menu toggle, both WASD and Arrow keys work always at the same time. This could be handy for laptops which sometimes have split up and down keys (as in 2 small buttons over the size of 1 normal button. This makes standard game controls pretty much useless).
EDIT: It's probably worth noticing that a name imput should be at the very beginning of the game where the player didn't move yet, as I didn't test it if the player moves before that. Anyway, after a name input the following Plugin Commands should be made:
SwitchButton All
RevertButton Left
RevertButton Up
RevertButton Right
RevertButton Down